3x+1 Class records calculation progress map
Status of the 3x+1 class record progress as of: Apr 6, 2020.
Intervals are indicated in blocks of 100,000,000,000,000 (100 E+12 or 100 trillion numbers).
Calculation of a single block takes approximately 3-6 days of (idle) time on 3 GHz processor.

All class records found so far can be viewed on the class records page.
This project can only run because of many cooperating contributors.
If you would like to contribute one or more blocks please go to the search page.
Note : the 3x+1 problem is just one of many distributed projects on the internet. 		Trajectory of 63,728,127
Progress history
March 12 2020 : All blocks up to 710,300 completed. One more class record confirmed.
March 1 2020 : All blocks up to 698,000 completed. Six more class records confirmed.
February 15 2020 : All blocks up to 651,300 completed. Six class records confirmed.
January 8 2020 : All blocks up to 603,900 completed.
December 25 2019 : All blocks up to 602,000 completed. Four more class records confirmed.
December 21 2019 : All blocks up to 582,900 completed. Lowest missing class record (2073) and four others confirmed.
December 15 2019 : All blocks up to 563,300 completed.
September 29 2019 : All blocks up to 561,200 completed. Delay record 2277 and eight more class record confirmed.
July 11 2019 : All blocks up to 509,000 completed. One more class record confirmed.
May 12 2019 : All blocks up to 506,600 completed. One more class record confirmed.
May 5 2019 : All blocks up to 500,000 completed. Delay record 2264 and five more class records confirmed.
April 5 2019 : All blocks up to 476,400 completed. Three more class records confirmed.
Show/Hide earlier milestones
March 2019 : All blocks up to 455,200 completed. Lowest missing class record (2070) and four others confirmed.
December 2018 : All blocks up to 387,000 completed. Delay record 2261 and nine more class records confirmed.
October 2018 : All blocks up to 366,400 completed. Six more class records confirmed.
June 2018 : All blocks up to 346,000 completed. Three more class records confirmed.
December 2017 : All blocks up to 326,500 completed. Five more class records confirmed.
May 2017 : All blocks up to 305,400 completed. 258 reached. Two more class record confirmed.
October 2016 : All blocks up to 280,000 completed. Delay record 2258 and two more class records confirmed.
March 2016 : All blocks up to 275,200 completed. Four more class records confirmed.
March 19 2016 : Possible new Delay Record (Delay 2258) found by Lutz.
December 2015 : All blocks up to 263,350 completed. Four more class records confirmed. 2100 class records known.
July 2015 : All blocks up to 245,500 completed. Five more class records confirmed.
December 2014 : All blocks up to 222,280 completed. Three more class records confirmed.
November 2014 : All blocks up to 213,800 completed. Delay record 2255 and two more class records confirmed.
May 2014 : All blocks up to 203,920 completed. Three class records confirmed.
February 2014 : All blocks up to 194,060 completed. Five class records confirmed. All class records up to 2050 known.
November 2013 : All blocks up to 184,000 completed. Three more class records confirmed
June 2013 : All blocks up to 166,700 completed. Two more class records confirmed.
April 2013 : All blocks up to 165,200 completed. One more class record confirmed.
February 2013 : All blocks up to 160,740 completed. Six more class records confirmed.
November 2012 : All blocks up to 148,800 completed. Five more class records confirmed
May 2012 : All blocks up to 132,360 completed. Five class records confirmed.
January 2012 : All blocks up to 121,500 completed. Final missing class record below 2000 found.
December 2011 : All blocks up to 120,200 completed. One class record confirmed.
October 2011 : All blocks up to 117,000 completed. Three more class record confirmed.
July 2011 : All blocks up to 107,500 completed. Delay record 2254 and three class records confirmed.
April 2011 : All blocks up to 97,080 completed. Delay Record 2091 and two other class records confirmed.
November 2010 : All blocks up to 91,880 completed. Three class records confirmed.
August 2010 : All blocks up to 90,000 completed. Four more class records confirmed.
February 2010 : All blocks up to 82,700 completed. Two class records confirmed.
June 2009 : All blocks up to 76,160 completed. The lowest missing CR (1964) and one other confirmed.
April 2009 : All blocks up to 72,520 completed, passing 256. Three class records confirmed.
February 2009 : All blocks up to 71,020 completed. One more class record confirmed.
December 2008 : All blocks up to 69,740 completed. The lowest missing CR (1951) and two more confirmed.
November 2008 : All blocks up to 67,500 completed. Class record 2000 finally confirmed.
October 2008 : All blocks up to 66,380 completed. Four more class records confirmed.
May 2008 : All blocks up to 61,160 completed. The lowest missing CR (1925) and three others confirmed.
December 2007 : All blocks up to 58,600 completed. Four class records confirmed.
April 2007 : All blocks up to 54,540 completed. Five more class records confirmed.
October 2006 : All blocks up to 50,000 completed. Delay Record 2090 and five class records confirmed.
November 2005 : All blocks up to 46,100 completed. Double of Record 2045 confirmed as Delay Record 2046.
August 2005 : All blocks up to 45,040 completed. Five class records confirmed.
May 2005 : Delay Record of 2090 found at ±46,785 E+12 by Eric
February 2005 : All blocks up to 42,060 completed. Three more class record confirmed.
November 2004 : All blocks up to 40,000 completed. Four class records confirmed.
August 2004 : All blocks up to 37,500 completed. Another four class records confirmed.
May 2004 : All blocks up to 36,120 completed. Seven class records confirmed.
January 2004 : All blocks up to 31,960 completed. Five further class records confirmed.
November 2003 : All blocks up to 29,840 completed. One more class record confirmed.
August 2003 : All blocks up to 29,240 completed. Another fifteen class records confirmed.
April 2003 : All blocks up to 23,100 completed. Delay record 2045 and seven class records confirmed.
December 2002 : All blocks up to 20,100 completed. All class records below 1900 known.
November 2002 : All blocks up to 20,000 completed. Delay record 2042 and fourteen class records confirmed.
November 2002 : Delay Record of 2045 found at ±22,702 E+12 by Kevin
July 2002 : All blocks up to 16,460 completed. Delay record 2039 and fifteen class records confirmed.
April 2002 : All blocks up to 12,720 completed. Another fourteen class records confirmed.
March 2002 : Delay Record of 2042 found at ±17,026 E+12 by Michael
February 2002 : All blocks up to 9340 completed. Two more class records confirmed.
December 2001 : Delay Record of 2039 found at ±12,770 E+12 by Billy
November 2001 : All blocks up to 9020 completed. One Delay record and ten class records confirmed.
September 2001 : All blocks up to 6800 completed. Three Delay records and fourteen class records confirmed. 
August 2001 : All blocks up to 3600 completed. Two Delay records and five class records confirmed
June 2001 : Delay Record of 1958 found at ±7579 E+12 by Kevin
May 2001 : Delay Record of 1919 found at ±6482 E+12 by Kevin
April 2001 : Delay Record of 1916 found at ±4861 E+12 by Kevin
March 2001 : Delay Record of 1903 found at ±4320 E+12 by Kevin
March 2001 : Delay Record of 1895 found at ±3586 E+12 by Eric
March 2001 : Delay Record of 1874 found at ±2978 E+12 by Kevin
February 2001 : All blocks up to 2620 completed. Three class records confirmed.
January 2001 : New Class and Delay Record of 1871 found at 2234,047405,400065.

Range 2000-20000
completed (view)		Range 20000-40000
completed (view)		Range 40000-60000
completed (view)		Range 60000-80000
completed (view)		Range 80000-100000
completed (view)
Range 100000-120000
completed (view)		Range 120000-140000
completed (view)		Range 140000-160000
completed (view)		Range 160000-180000
completed (view)		Range 180000-200000
completed (view)
Range 200000-300000
completed (view)		Range 300000-400000
completed (view)		Range 400000-500000
completed (view)		Range 500000-600000
completed (view)		Range 600000-700000
completed (view)
Not yet assigned Assigned,
not yet started		 Assigned,
in progress		 Entire interval
completed		 Interval completed
class record found
700000-100
Daniel		 700100-200
Daniel		 700200-300
Daniel		 700300-400
Daniel		 700400-500
Daniel		 700500-600
Daniel		 700600-700
Daniel		 700700-800
Daniel		 700800-900
Daniel		 700900-000
Daniel
701000-100
Daniel		 701100-200
Daniel		 701200-300
Daniel		 701300-400
Daniel		 701400-500
Daniel		 701500-600
Daniel		 701600-700
Daniel		 701700-800
Daniel		 701800-900
Daniel		 701900-000
Daniel
702000-100
Daniel		 702100-200
Daniel		 702200-300
Daniel		 702300-400
Daniel		 702400-500
Daniel		 702500-600
Daniel		 702600-700
Daniel		 702700-800
Daniel		 702800-900
Daniel		 702900-000
Daniel
703000-100
Daniel		 703100-200
Daniel		 703200-300
Daniel		 703300-400
Daniel		 703400-500
Daniel		 703500-600
Daniel		 703600-700
Daniel		 703700-800
Daniel		 703800-900
Daniel		 703900-000
Daniel
704000-100
Daniel		 704100-200
Daniel		 704200-300
Daniel		 704300-400
Daniel		 704400-500
Daniel		 704500-600
Daniel		 704600-700
Daniel		 704700-800
Daniel		 704800-900
Daniel		 704900-000
Daniel
705000-100
Daniel		 705100-200
Daniel		 705200-300
Daniel		 705300-400
Daniel		 705400-500
Daniel		 705500-600
Daniel		 705600-700
Daniel		 705700-800
Daniel		 705800-900
Daniel		 705900-000
Daniel
706000-100
Daniel		 706100-200
Daniel		 706200-300
Daniel		 706300-400
Daniel		 706400-500
Daniel		 706500-600
Daniel		 706600-700
Daniel		 706700-800
Daniel		 706800-900
Daniel		 706900-000
Daniel
707000-100
Daniel		 707100-200
Daniel		 707200-300
Daniel		 707300-400
Daniel		 707400-500
Daniel		 707500-600
Daniel		 707600-700
Daniel		 707700-800
Daniel		 707800-900
Daniel		 707900-000
Daniel
708000-100
Daniel		 708100-200
Daniel		 708200-300
Daniel		 708300-400
Daniel		 708400-500
Daniel		 708500-600
Daniel		 708600-700
Daniel		 708700-800
Daniel		 708800-900
Daniel		 708900-000
Daniel
709000-100
Daniel		 709100-200
Daniel		 709200-300
Daniel		 709300-400
Daniel		 709400-500
Daniel		 709500-600
Daniel		 709600-700
Daniel		 709700-800
Daniel		 709800-900
Daniel		 709900-000
Daniel
710000-100
Lutz		 710100-200
Lutz		 710200-300
Lutz		 710300-400
Lutz		 710400-500
Lutz		 710500-600
Lutz		 710600-700
Lutz		 710700-800
Lutz		 710800-900
Lutz		 710900-000
Lutz
711000-100
Lutz		 711100-200
Lutz		 711200-300
Lutz		 711300-400
Lutz		 711400-500
Lutz		 711500-600
Lutz		 711600-700
Lutz		 711700-800
Lutz		 711800-900
Lutz		 711900-000
Lutz
712000-100
Frank H		 712100-200
George C		 712200-300
George C		 712300-400
George C		 712400-500
George C		 712500-600
George C		 712600-700
George C		 712700-800
Bob		 712800-900
Bob		 712900-000
Eric
713000-100
Eric		 713100-200
Eric		 713200-300
Eric		 713300-400
Eric		 713400-500
Eric		 713500-600
Frank H		 713600-700
Luiz		 713700-800
Luiz		 713800-900
Luiz		 713900-000
Luiz
714000-100
Steven		 714100-200
Steven		 714200-300
Steven		 714300-400
Steven		 714400-500
Steven		 714500-600
Steven		 714600-700
Steven		 714700-800
Steven		 714800-900
Eric		 714900-000
Eric
715000-100
Lutz		 715100-200
Lutz		 715200-300
Lutz		 715300-400
Lutz		 715400-500
Lutz		 715500-600
Lutz		 715600-700
Lutz		 715700-800
Lutz		 715800-900
Lutz		 715900-000
Lutz
716000-100
Frank H		 716100-200
George C		 716200-300
George C		 716300-400
George C		 716400-500
George C		 716500-600
George C		 716600-700
George C		 716700-800
Frank H		 716800-900
Eric		 716900-000
Eric
717000-100
Eric		 717100-200
Eric		 717200-300
Eric		 717300-400
Eric		 717400-500
Eric		 717500-600
Eric		 717600-700
Eric		 717700-800
Eric		 717800-900
Eric		 717900-000
Eric
718000-100
Eric		 718100-200
Eric		 718200-300
Eric		 718300-400
Eric		 718400-500
Eric		 718500-600
Eric		 718600-700
Eric		 718700-800
Eric		 718800-900
Eric		 718900-000
Eric
719000-100
Eric		 719100-200
Eric		 719200-300
Eric		 719300-400
Eric		 719400-500
Eric		 719500-600
Eric		 719600-700
Eric		 719700-800
Eric		 719800-900
Eric		 719900-000
Eric
720000-100
Wenjie		 720100-200
Wenjie		 720200-300
Wenjie		 720300-400
Wenjie		 720400-500
Wenjie		 720500-600
Wenjie		 720600-700
Wenjie		 720700-800
Wenjie		 720800-900
Wenjie		 720900-000
Wenjie
721000-100
Wenjie		 721100-200
Wenjie		 721200-300
Wenjie		 721300-400
Wenjie		 721400-500
Wenjie		 721500-600
Wenjie		 721600-700
Wenjie		 721700-800
Wenjie		 721800-900
Wenjie		 721900-000
Wenjie
722000-100
Wenjie		 722100-200
Wenjie		 722200-300
Wenjie		 722300-400
Wenjie		 722400-500
Wenjie		 722500-600
Wenjie		 722600-700
Wenjie		 722700-800
Wenjie		 722800-900
Wenjie		 722900-000
Wenjie
723000-100
Wenjie		 723100-200
Wenjie		 723200-300
Wenjie		 723300-400
Wenjie		 723400-500
Wenjie		 723500-600
Wenjie		 723600-700
Wenjie		 723700-800
Wenjie		 723800-900
Wenjie		 723900-000
Wenjie
724000-100
Wenjie		 724100-200
Wenjie		 724200-300
Wenjie		 724300-400
Wenjie		 724400-500
Wenjie		 724500-600
Wenjie		 724600-700
Wenjie		 724700-800
Wenjie		 724800-900
Wenjie		 724900-000
Wenjie
725000-100
Wenjie		 725100-200
Wenjie		 725200-300
Wenjie		 725300-400
Wenjie		 725400-500
Wenjie		 725500-600
Wenjie		 725600-700
Wenjie		 725700-800
Wenjie		 725800-900
Wenjie		 725900-000
Wenjie
726000-100
Wenjie		 726100-200
Wenjie		 726200-300
Wenjie		 726300-400
Wenjie		 726400-500
Wenjie		 726500-600
Wenjie		 726600-700
Wenjie		 726700-800
Wenjie		 726800-900
Wenjie		 726900-000
Wenjie
727000-100
Wenjie		 727100-200
Wenjie		 727200-300
Wenjie		 727300-400
Wenjie		 727400-500
Wenjie		 727500-600
Wenjie		 727600-700
Wenjie		 727700-800
Wenjie		 727800-900
Wenjie		 727900-000
Wenjie
728000-100
Wenjie		 728100-200
Wenjie		 728200-300
Wenjie		 728300-400
Wenjie		 728400-500
Wenjie		 728500-600
Wenjie		 728600-700
Wenjie		 728700-800
Wenjie		 728800-900
Wenjie		 728900-000
Wenjie
729000-100
Wenjie		 729100-200
Wenjie		 729200-300
Wenjie		 729300-400
Wenjie		 729400-500
Wenjie		 729500-600
Wenjie		 729600-700
Wenjie		 729700-800
Wenjie		 729800-900
Wenjie		 729900-000
Wenjie
730000-100
Wenjie		 730100-200
Wenjie		 730200-300
Wenjie		 730300-400
Wenjie		 730400-500
Wenjie		 730500-600
Wenjie		 730600-700
Wenjie		 730700-800
Wenjie		 730800-900
Wenjie		 730900-000
Wenjie
731000-100
Wenjie		 731100-200
Wenjie		 731200-300
Wenjie		 731300-400
Wenjie		 731400-500
Wenjie		 731500-600
Wenjie		 731600-700
Wenjie		 731700-800
Wenjie		 731800-900
Wenjie		 731900-000
Wenjie
732000-100
Wenjie		 732100-200
Wenjie		 732200-300
Wenjie		 732300-400
Wenjie		 732400-500
Wenjie		 732500-600
Wenjie		 732600-700
Wenjie		 732700-800
Wenjie		 732800-900
Wenjie		 732900-000
Wenjie
733000-100
Wenjie		 733100-200
Wenjie		 733200-300
Wenjie		 733300-400
Wenjie		 733400-500
Wenjie		 733500-600
Wenjie		 733600-700
Wenjie		 733700-800
Wenjie		 733800-900
Wenjie		 733900-000
Wenjie
734000-100
Wenjie		 734100-200
Wenjie		 734200-300
Wenjie		 734300-400
Wenjie		 734400-500
Wenjie		 734500-600
Wenjie		 734600-700
Wenjie		 734700-800
Wenjie		 734800-900
Wenjie		 734900-000
Wenjie
735000-100
Wenjie		 735100-200
Wenjie		 735200-300
Wenjie		 735300-400
Wenjie		 735400-500
Wenjie		 735500-600
Wenjie		 735600-700
Wenjie		 735700-800
Wenjie		 735800-900
Wenjie		 735900-000
Wenjie
736000-100
Wenjie		 736100-200
Wenjie		 736200-300
Wenjie		 736300-400
Wenjie		 736400-500
Wenjie		 736500-600
Wenjie		 736600-700
Wenjie		 736700-800
Wenjie		 736800-900
Wenjie		 736900-000
Wenjie
737000-100
Wenjie		 737100-200
Wenjie		 737200-300
Wenjie		 737300-400
Wenjie		 737400-500
Wenjie		 737500-600
Wenjie		 737600-700
Wenjie		 737700-800
Wenjie		 737800-900
Wenjie		 737900-000
Wenjie
738000-100
Wenjie		 738100-200
Wenjie		 738200-300
Wenjie		 738300-400
Wenjie		 738400-500
Wenjie		 738500-600
Wenjie		 738600-700
Wenjie		 738700-800
Wenjie		 738800-900
Wenjie		 738900-000
Wenjie
739000-100
Wenjie		 739100-200
Wenjie		 739200-300
Wenjie		 739300-400
Wenjie		 739400-500
Wenjie		 739500-600
Wenjie		 739600-700
Wenjie		 739700-800
Wenjie		 739800-900
Wenjie		 739900-000
Wenjie
740000-100
Kevin		 740100-200
Kevin		 740200-300
Kevin		 740300-400
Kevin		 740400-500
Kevin		 740500-600
Kevin		 740600-700
Kevin		 740700-800
Kevin		 740800-900
Kevin		 740900-000
Kevin
741000-100
Kevin		 741100-200
Kevin		 741200-300
Kevin		 741300-400
Kevin		 741400-500
Kevin		 741500-600
Kevin		 741600-700
Kevin		 741700-800
Kevin		 741800-900
Kevin		 741900-000
Kevin
742000-100
Kevin		 742100-200
Kevin		 742200-300
Kevin		 742300-400
Kevin		 742400-500
Kevin		 742500-600
Kevin		 742600-700
Kevin		 742700-800
Kevin		 742800-900
Kevin		 742900-000
Kevin
743000-100
Kevin		 743100-200
Kevin		 743200-300
Kevin		 743300-400
Kevin		 743400-500
Kevin		 743500-600
Kevin		 743600-700
Kevin		 743700-800
Kevin		 743800-900
Kevin		 743900-000
Kevin
744000-100
Kevin		 744100-200
Kevin		 744200-300
Kevin		 744300-400
Kevin		 744400-500
Kevin		 744500-600
Kevin		 744600-700
Kevin		 744700-800
Kevin		 744800-900
Kevin		 744900-000
Kevin
745000-100
Kevin		 745100-200
Kevin		 745200-300
Kevin		 745300-400
Kevin		 745400-500
Kevin		 745500-600
Kevin		 745600-700
Kevin		 745700-800
Kevin		 745800-900
Kevin		 745900-000
Kevin
746000-100
Kevin		 746100-200
Kevin		 746200-300
Kevin		 746300-400
Kevin		 746400-500
Kevin		 746500-600
Kevin		 746600-700
Kevin		 746700-800
Kevin		 746800-900
Kevin		 746900-000
Kevin
747000-100
Kevin		 747100-200
Kevin		 747200-300
Kevin		 747300-400
Kevin		 747400-500
Kevin		 747500-600
Kevin		 747600-700
Kevin		 747700-800
Kevin		 747800-900
Kevin		 747900-000
Kevin
748000-100
Kevin		 748100-200
Kevin		 748200-300
Kevin		 748300-400
Kevin		 748400-500
Kevin		 748500-600
Kevin		 748600-700
Kevin		 748700-800
Kevin		 748800-900
Kevin		 748900-000
Kevin
749000-100
Kevin		 749100-200
Kevin		 749200-300
Kevin		 749300-400
Kevin		 749400-500
Kevin		 749500-600
Kevin		 749600-700
Kevin		 749700-800
Kevin		 749800-900
Kevin		 749900-000
Kevin
750000-100
Kevin		 750100-200
Kevin		 750200-300
Kevin		 750300-400
Kevin		 750400-500
Kevin		 750500-600
Kevin		 750600-700
Kevin		 750700-800
Kevin		 750800-900
Kevin		 750900-000
Kevin
751000-100
Kevin		 751100-200
Kevin		 751200-300
Kevin		 751300-400
Kevin		 751400-500
Kevin		 751500-600
Kevin		 751600-700
Kevin		 751700-800
Kevin		 751800-900
Kevin		 751900-000
Kevin
752000-100
Kevin		 752100-200
Kevin		 752200-300
Kevin		 752300-400
Kevin		 752400-500
Kevin		 752500-600
Kevin		 752600-700
Kevin		 752700-800
Kevin		 752800-900
Kevin		 752900-000
Kevin
753000-100
Kevin		 753100-200
Kevin		 753200-300
Kevin		 753300-400
Kevin		 753400-500
Kevin		 753500-600
Kevin		 753600-700
Kevin		 753700-800
Kevin		 753800-900
Kevin		 753900-000
Kevin
754000-100
Kevin		 754100-200
Kevin		 754200-300
Kevin		 754300-400
Kevin		 754400-500
Kevin		 754500-600
Kevin		 754600-700
Kevin		 754700-800
Kevin		 754800-900
Kevin		 754900-000
Kevin
755000-100
Kevin		 755100-200
Kevin		 755200-300
Kevin		 755300-400
Kevin		 755400-500
Kevin		 755500-600
Kevin		 755600-700
Kevin		 755700-800
Kevin		 755800-900
Kevin		 755900-000
Kevin
756000-100
Kevin		 756100-200
Kevin		 756200-300
Kevin		 756300-400
Kevin		 756400-500
Kevin		 756500-600
Kevin		 756600-700
Kevin		 756700-800
Kevin		 756800-900
Kevin		 756900-000
Kevin
757000-100
Kevin		 757100-200
Kevin		 757200-300
Kevin		 757300-400
Kevin		 757400-500
Kevin		 757500-600
Kevin		 757600-700
Kevin		 757700-800
Kevin		 757800-900
Kevin		 757900-000
Kevin
758000-100
Kevin		 758100-200
Kevin		 758200-300
Kevin		 758300-400
Kevin		 758400-500
Kevin		 758500-600
Kevin		 758600-700
Kevin		 758700-800
Kevin		 758800-900
Kevin		 758900-000
Kevin
759000-100
Kevin		 759100-200
Kevin		 759200-300
Kevin		 759300-400
Kevin		 759400-500
Kevin		 759500-600
Kevin		 759600-700
Kevin		 759700-800
Kevin		 759800-900
Kevin		 759900-000
Kevin
760000-100
Kevin		 760100-200
Kevin		 760200-300
Kevin		 760300-400
Kevin		 760400-500
Kevin		 760500-600
Kevin		 760600-700
Kevin		 760700-800
Kevin		 760800-900
Kevin		 760900-000
Kevin
761000-100
Kevin		 761100-200
Kevin		 761200-300
Kevin		 761300-400
Kevin		 761400-500
Kevin		 761500-600
Kevin		 761600-700
Kevin		 761700-800
Kevin		 761800-900
Kevin		 761900-000
Kevin
762000-100
Kevin		 762100-200
Kevin		 762200-300
Kevin		 762300-400
Kevin		 762400-500
Kevin		 762500-600
Kevin		 762600-700
Kevin		 762700-800
Kevin		 762800-900
Kevin		 762900-000
Kevin
763000-100
Kevin		 763100-200
Kevin		 763200-300
Kevin		 763300-400
Kevin		 763400-500
Kevin		 763500-600
Kevin		 763600-700
Kevin		 763700-800
Kevin		 763800-900
Kevin		 763900-000
Kevin
764000-100
Kevin		 764100-200
Kevin		 764200-300
Kevin		 764300-400
Kevin		 764400-500
Kevin		 764500-600
Kevin		 764600-700
Kevin		 764700-800
Kevin		 764800-900
Kevin		 764900-000
Kevin
765000-100
Kevin		 765100-200
Kevin		 765200-300
Kevin		 765300-400
Kevin		 765400-500
Kevin		 765500-600
Kevin		 765600-700
Kevin		 765700-800
Kevin		 765800-900
Kevin		 765900-000
Kevin
766000-100
Kevin		 766100-200
Kevin		 766200-300
Kevin		 766300-400
Kevin		 766400-500
Kevin		 766500-600
Kevin		 766600-700
Kevin		 766700-800
Kevin		 766800-900
Kevin		 766900-000
Kevin
767000-100
Kevin		 767100-200
Kevin		 767200-300
Kevin		 767300-400
Kevin		 767400-500
Kevin		 767500-600
Kevin		 767600-700
Kevin		 767700-800
Kevin		 767800-900
Kevin		 767900-000
Kevin
768000-100
Kevin		 768100-200
Kevin		 768200-300
Kevin		 768300-400
Kevin		 768400-500
Kevin		 768500-600
Kevin		 768600-700
Kevin		 768700-800
Kevin		 768800-900
Kevin		 768900-000
Kevin
769000-100
Kevin		 769100-200
Kevin		 769200-300
Kevin		 769300-400
Kevin		 769400-500
Kevin		 769500-600
Kevin		 769600-700
Kevin		 769700-800
Kevin		 769800-900
Kevin		 769900-000
Kevin
770000-100
Kevin		 770100-200
Kevin		 770200-300
Kevin		 770300-400
Kevin		 770400-500
Kevin		 770500-600
Kevin		 770600-700
Kevin		 770700-800
Kevin		 770800-900
Kevin		 770900-000
Kevin
771000-100
Kevin		 771100-200
Kevin		 771200-300
Kevin		 771300-400
Kevin		 771400-500
Kevin		 771500-600
Kevin		 771600-700
Kevin		 771700-800
Kevin		 771800-900
Kevin		 771900-000
Kevin
772000-100
Kevin		 772100-200
Kevin		 772200-300
Kevin		 772300-400
Kevin		 772400-500
Kevin		 772500-600
Kevin		 772600-700
Kevin		 772700-800
Kevin		 772800-900
Kevin		 772900-000
Kevin
773000-100
Kevin		 773100-200
Kevin		 773200-300
Kevin		 773300-400
Kevin		 773400-500
Kevin		 773500-600
Kevin		 773600-700
Kevin		 773700-800
Kevin		 773800-900
Kevin		 773900-000
Kevin
774000-100
Kevin		 774100-200
Kevin		 774200-300
Kevin		 774300-400
Kevin		 774400-500
Kevin		 774500-600
Kevin		 774600-700
Kevin		 774700-800
Kevin		 774800-900
Kevin		 774900-000
Kevin
775000-100
Kevin		 775100-200
Kevin		 775200-300
Kevin		 775300-400
Kevin		 775400-500
Kevin		 775500-600
Kevin		 775600-700
Kevin		 775700-800
Kevin		 775800-900
Kevin		 775900-000
Kevin
776000-100
Kevin		 776100-200
Kevin		 776200-300
Kevin		 776300-400
Kevin		 776400-500
Kevin		 776500-600
Kevin		 776600-700
Kevin		 776700-800
Kevin		 776800-900
Kevin		 776900-000
Kevin
777000-100
Kevin		 777100-200
Kevin		 777200-300
Kevin		 777300-400
Kevin		 777400-500
Kevin		 777500-600
Kevin		 777600-700
Kevin		 777700-800
Kevin		 777800-900
Kevin		 777900-000
Kevin
778000-100
Kevin		 778100-200
Kevin		 778200-300
Kevin		 778300-400
Kevin		 778400-500
Kevin		 778500-600
Kevin		 778600-700
Kevin		 778700-800
Kevin		 778800-900
Kevin		 778900-000
Kevin
779000-100
Kevin		 779100-200
Kevin		 779200-300
Kevin		 779300-400
Kevin		 779400-500
Kevin		 779500-600
Kevin		 779600-700
Kevin		 779700-800
Kevin		 779800-900
Kevin		 779900-000
Kevin
780000-100
Kevin		 780100-200
Kevin		 780200-300
Kevin		 780300-400
Kevin		 780400-500
Kevin		 780500-600
Kevin		 780600-700
Kevin		 780700-800
Kevin		 780800-900
Kevin		 780900-000
Kevin
781000-100
Kevin		 781100-200
Kevin		 781200-300
Kevin		 781300-400
Kevin		 781400-500
Kevin		 781500-600
Kevin		 781600-700
Kevin		 781700-800
Kevin		 781800-900
Kevin		 781900-000
Kevin
782000-100
Kevin		 782100-200
Kevin		 782200-300
Kevin		 782300-400
Kevin		 782400-500
Kevin		 782500-600
Kevin		 782600-700
Kevin		 782700-800
Kevin		 782800-900
Kevin		 782900-000
Kevin
783000-100
Kevin		 783100-200
Kevin		 783200-300
Kevin		 783300-400
Kevin		 783400-500
Kevin		 783500-600
Kevin		 783600-700
Kevin		 783700-800
Kevin		 783800-900
Kevin		 783900-000
Kevin
784000-100
Kevin		 784100-200
Kevin		 784200-300
Kevin		 784300-400
Kevin		 784400-500
Kevin		 784500-600
Kevin		 784600-700
Kevin		 784700-800
Kevin		 784800-900
Kevin		 784900-000
Kevin
785000-100
Kevin		 785100-200
Kevin		 785200-300
Kevin		 785300-400
Kevin		 785400-500
Kevin		 785500-600
Kevin		 785600-700
Kevin		 785700-800
Kevin		 785800-900
Kevin		 785900-000
Kevin
786000-100
Kevin		 786100-200
Kevin		 786200-300
Kevin		 786300-400
Kevin		 786400-500
Kevin		 786500-600
Kevin		 786600-700
Kevin		 786700-800
Kevin		 786800-900
Kevin		 786900-000
Kevin
787000-100
Kevin		 787100-200
Kevin		 787200-300
Kevin		 787300-400
Kevin		 787400-500
Kevin		 787500-600
Kevin		 787600-700
Kevin		 787700-800
Kevin		 787800-900
Kevin		 787900-000
Kevin
788000-100
Kevin		 788100-200
Kevin		 788200-300
Kevin		 788300-400
Kevin		 788400-500
Kevin		 788500-600
Kevin		 788600-700
Kevin		 788700-800
Kevin		 788800-900
Kevin		 788900-000
Kevin
789000-100
Kevin		 789100-200
Kevin		 789200-300
Kevin		 789300-400
Kevin		 789400-500
Kevin		 789500-600
Kevin		 789600-700
Kevin		 789700-800
Kevin		 789800-900
Kevin		 789900-000
Kevin
790000-100
Kevin		 790100-200
Kevin		 790200-300
Kevin		 790300-400
Kevin		 790400-500
Kevin		 790500-600
Kevin		 790600-700
Kevin		 790700-800
Kevin		 790800-900
Kevin		 790900-000
Kevin
791000-100
Kevin		 791100-200
Kevin		 791200-300
Kevin		 791300-400
Kevin		 791400-500
Kevin		 791500-600
Kevin		 791600-700
Kevin		 791700-800
Kevin		 791800-900
Kevin		 791900-000
Kevin
792000-100
Kevin		 792100-200
Kevin		 792200-300
Kevin		 792300-400
Kevin		 792400-500
Kevin		 792500-600
Kevin		 792600-700
Kevin		 792700-800
Kevin		 792800-900
Kevin		 792900-000
Kevin
793000-100
Kevin		 793100-200
Kevin		 793200-300
Kevin		 793300-400
Kevin		 793400-500
Kevin		 793500-600
Kevin		 793600-700
Kevin		 793700-800
Kevin		 793800-900
Kevin		 793900-000
Kevin
794000-100
Kevin		 794100-200
Kevin		 794200-300
Kevin		 794300-400
Kevin		 794400-500
Kevin		 794500-600
Kevin		 794600-700
Kevin		 794700-800
Kevin		 794800-900
Kevin		 794900-000
Kevin
795000-100
Kevin		 795100-200
Kevin		 795200-300
Kevin		 795300-400
Kevin		 795400-500
Kevin		 795500-600
Kevin		 795600-700
Kevin		 795700-800
Kevin		 795800-900
Kevin		 795900-000
Kevin
796000-100
Kevin		 796100-200
Kevin		 796200-300
Kevin		 796300-400
Kevin		 796400-500
Kevin		 796500-600
Kevin		 796600-700
Kevin		 796700-800
Kevin		 796800-900
Kevin		 796900-000
Kevin
797000-100
Kevin		 797100-200
Kevin		 797200-300
Kevin		 797300-400
Kevin		 797400-500
Kevin		 797500-600
Kevin		 797600-700
Kevin		 797700-800
Kevin		 797800-900
Kevin		 797900-000
Kevin
798000-100
Kevin		 798100-200
Kevin		 798200-300
Kevin		 798300-400
Kevin		 798400-500
Kevin		 798500-600
Kevin		 798600-700
Kevin		 798700-800
Kevin		 798800-900
Kevin		 798900-000
Kevin
799000-100
Kevin		 799100-200
Kevin		 799200-300
Kevin		 799300-400
Kevin		 799400-500
Kevin		 799500-600
Kevin		 799600-700
Kevin		 799700-800
Kevin		 799800-900
Kevin		 799900-000
Kevin
800000-100
Kevin		 800100-200
Kevin		 800200-300
Kevin		 800300-400
Kevin		 800400-500
Kevin		 800500-600
Kevin		 800600-700
Kevin		 800700-800
Kevin		 800800-900
Kevin		 800900-000
Kevin
801000-100
Kevin		 801100-200
Kevin		 801200-300
Kevin		 801300-400
Kevin		 801400-500
Kevin		 801500-600
Kevin		 801600-700
Kevin		 801700-800
Kevin		 801800-900
Kevin		 801900-000
Kevin
802000-100
Kevin		 802100-200
Kevin		 802200-300
Kevin		 802300-400
Kevin		 802400-500
Kevin		 802500-600
Kevin		 802600-700
Kevin		 802700-800
Kevin		 802800-900
Kevin		 802900-000
Kevin
803000-100
Kevin		 803100-200
Kevin		 803200-300
Kevin		 803300-400
Kevin		 803400-500
Kevin		 803500-600
Kevin		 803600-700
Kevin		 803700-800
Kevin		 803800-900
Kevin		 803900-000
Kevin
804000-100
Kevin		 804100-200
Kevin		 804200-300
Kevin		 804300-400
Kevin		 804400-500
Kevin		 804500-600
Kevin		 804600-700
Kevin		 804700-800
Kevin		 804800-900
Kevin		 804900-000
Kevin
805000-100
Kevin		 805100-200
Kevin		 805200-300
Kevin		 805300-400
Kevin		 805400-500
Kevin		 805500-600
Kevin		 805600-700
Kevin		 805700-800
Kevin		 805800-900
Kevin		 805900-000
Kevin
806000-100
Kevin		 806100-200
Kevin		 806200-300
Kevin		 806300-400
Kevin		 806400-500
Kevin		 806500-600
Kevin		 806600-700
Kevin		 806700-800
Kevin		 806800-900
Kevin		 806900-000
Kevin
807000-100
Kevin		 807100-200
Kevin		 807200-300
Kevin		 807300-400
Kevin		 807400-500
Kevin		 807500-600
Kevin		 807600-700
Kevin		 807700-800
Kevin		 807800-900
Kevin		 807900-000
Kevin
808000-100
Kevin		 808100-200
Kevin		 808200-300
Kevin		 808300-400
Kevin		 808400-500
Kevin		 808500-600
Kevin		 808600-700
Kevin		 808700-800
Kevin		 808800-900
Kevin		 808900-000
Kevin
809000-100
Kevin		 809100-200
Kevin		 809200-300
Kevin		 809300-400
Kevin		 809400-500
Kevin		 809500-600
Kevin		 809600-700
Kevin		 809700-800
Kevin		 809800-900
Kevin		 809900-000
Kevin
810000-100
Daniel		 810100-200
Daniel		 810200-300
Daniel		 810300-400
Daniel		 810400-500
Daniel		 810500-600
Daniel		 810600-700
Daniel		 810700-800
Daniel		 810800-900
Daniel		 810900-000
Daniel
811000-100
Daniel		 811100-200
Daniel		 811200-300
Daniel		 811300-400
Daniel		 811400-500
Daniel		 811500-600
Daniel		 811600-700
Daniel		 811700-800
Daniel		 811800-900
Daniel		 811900-000
Daniel
812000-100
Daniel		 812100-200
Daniel		 812200-300
Daniel		 812300-400
Daniel		 812400-500
Daniel		 812500-600
Daniel		 812600-700
Daniel		 812700-800
Daniel		 812800-900
Daniel		 812900-000
Daniel
813000-100
Daniel		 813100-200
Daniel		 813200-300
Daniel		 813300-400
Daniel		 813400-500
Daniel		 813500-600
Daniel		 813600-700
Daniel		 813700-800
Daniel		 813800-900
Daniel		 813900-000
Daniel
814000-100
Daniel		 814100-200
Daniel		 814200-300
Daniel		 814300-400
Daniel		 814400-500
Daniel		 814500-600
Daniel		 814600-700
Daniel		 814700-800
Daniel		 814800-900
Daniel		 814900-000
Daniel
815000-100
Daniel		 815100-200
Daniel		 815200-300
Daniel		 815300-400
Daniel		 815400-500
Daniel		 815500-600
Daniel		 815600-700
Daniel		 815700-800
Daniel		 815800-900
Daniel		 815900-000
Daniel
816000-100
Daniel		 816100-200
Daniel		 816200-300
Daniel		 816300-400
Daniel		 816400-500
Daniel		 816500-600
Daniel		 816600-700
Daniel		 816700-800
Daniel		 816800-900
Daniel		 816900-000
Daniel
817000-100
Daniel		 817100-200
Daniel		 817200-300
Daniel		 817300-400
Daniel		 817400-500
Daniel		 817500-600
Daniel		 817600-700
Daniel		 817700-800
Daniel		 817800-900
Daniel		 817900-000
Daniel
818000-100
Daniel		 818100-200
Daniel		 818200-300
Daniel		 818300-400
Daniel		 818400-500
Daniel		 818500-600
Daniel		 818600-700
Daniel		 818700-800
Daniel		 818800-900
Daniel		 818900-000
Daniel
819000-100
Daniel		 819100-200
Daniel		 819200-300
Daniel		 819300-400
Daniel		 819400-500
Daniel		 819500-600
Daniel		 819600-700
Daniel		 819700-800
Daniel		 819800-900
Daniel		 819900-000
Daniel
820000-100
Luiz		 820100-200
Luiz		 820200-300
Luiz		 820300-400
Luiz		 820400-500
Etienne		 820500-600
Etienne		 820600-700
Etienne		 820700-800
Etienne		 820800-900
Etienne		 820900-000
Etienne
821000-100
Steven		 821100-200
Steven		 821200-300
Steven		 821300-400
Steven		 821400-500
Steven		 821500-600
Steven		 821600-700
Steven		 821700-800
Steven		 821800-900
Frank H		 821900-000
822000-100
Eric		 822100-200
Eric		 822200-300
Eric		 822300-400
Eric		 822400-500
Eric		 822500-600
Eric		 822600-700
Eric		 822700-800
Eric		 822800-900
Eric		 822900-000
Eric
823000-100
George C		 823100-200
George C		 823200-300
George C		 823300-400
George C		 823400-500
George C		 823500-600
George C		 823600-700
Eric		 823700-800
Eric		 823800-900
Eric		 823900-000
Eric
824000-100
Lutz		 824100-200
Lutz		 824200-300
Lutz		 824300-400
Lutz		 824400-500
Lutz		 824500-600
Lutz		 824600-700
Lutz		 824700-800
Lutz		 824800-900
Lutz		 824900-000
Lutz
825000-100
 825100-200
 825200-300
 825300-400
 825400-500
 825500-600
 825600-700
 825700-800
 825800-900
 825900-000
826000-100
 826100-200
 826200-300
 826300-400
 826400-500
 826500-600
 826600-700
 826700-800
 826800-900
 826900-000
827000-100
 827100-200
 827200-300
 827300-400
 827400-500
 827500-600
 827600-700
 827700-800
 827800-900
 827900-000
828000-100
 828100-200
 828200-300
 828300-400
 828400-500
 828500-600
 828600-700
 828700-800
 828800-900
 828900-000
829000-100
 829100-200
 829200-300
 829300-400
 829400-500
 829500-600
 829600-700
 829700-800
 829800-900
 829900-000
Contributions by
EricEric Roosendaal, Netherlands (author) LutzLutz Nebe, Germany
KevinKevin Hebb, Alberta, Canada BobBob Coffman, USA
WenjieFang Wenjie, China StevenSteven Cuthbert, England
LuizLuiz Antonio Souza, Brazil DanielDaniel Podobinski
George CGeorge Cunningham Frank HFrank Hubeny
EtienneEtienne, Brisbane   

Back to the general 3x+1 page.