Difference between revisions of "Riesel prime 2 9"

Revision as of 18:02, 24 April 2025

Reserved! This sequence is currently reserved by: Dmitry Domanov

Current data

`k` , `b` :	9 , 2
Type :	3
Count :	48
Nash :	1674
Max `n` :	7,800,000
Date :	2024-08-10
Reserved :	Dmitry DomanovDmitry Domanov/Reserved

1^[1], 3^[2], 7^[3], 13, 15^[4], 21^[5], 43^[6], 63^[7], 99^[8], 109^[9], 159^[10], 211^[11], 309^[12], 343^[13], 415, 469, 781, 871, 939^[14], 1551^[15], 3115, 3349, 5589^[16], 5815, 5893, 7939, 8007^[17], 11547^[18], 12495^[19], 22555, 23647, 35647, 83415^[20], 103059^[21], 184999, 275859^[22], 384243^[23], 484975, 503893, 828709, 1010277^[24], 1419855^[25], 1481821, 2060941, 3259381, 4005979, 4683555^[26], 7479919

Remarks :

The sequence A002236 in OEIS
See also Williams 9•8ⁿ-1

Notes

History

2024-08-10: Checked n = 6500000 - 7800000, Dmitry Domanov
2023-06-04: Found n = 7479919, Dmitry Domanov
2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
2020-10-29: Checked n = 6350000 - 6500000, Dmitry Domanov
2020-08-23: Checked n = 6000000 - 6350000, Dmitry Domanov
2020-03-11: none, Dmitry Domanov
2015-11-03: Checked n = 5700000 - 6000000, Dmitry Domanov
2015-05-06: Checked n = 5220000 - 5700000, Dmitry Domanov
2014-12-24: Checked n = 5000000 - 5220000, Dmitry Domanov
2014-09-29: Reserved by Dmitry Domanov for n = 5000000 - 6000000
2013-01-07: Checked n = 4000000 - 5000000, Peter Benson
2012-12-24: Found n = 4683555, Peter Benson
2012-11-17: Found n = 4005979, Peter Benson
2012-11-17: Reserved by Peter Benson from n = 4000000
2012-03-17: Checked n = 3000000 - 4000000, Peter Benson
2011-11-27: Found n = 3259381, Peter Benson
2011-11-01: Reserved by Peter Benson from n = 3000000
2011-06-02: Checked n = 2106000 - 3000000, Peter Benson
2011-04-05: Reserved by Peter Benson
2010-12-23: Checked n = 2105191 - 2106000, Predrag Minovic
2010-12-23: Checked n = 1840000 - 1968000, Larry Soule
2010-10-31: Checked n = 1814000 - 1840000, Predrag Minovic
2010-09-05: Checked n = 1610000 - 1652067, 1810159 - 1814000, Predrag Minovic
2010-07-18: Checked n = 1570000 - 1610000, Predrag Minovic
2010-06-05: Checked n = 1540000 - 1570000, Predrag Minovic
2010-04-11: Checked n = 1530000 - 1540000, Predrag Minovic
2010-02-11: Checked n = 1520000 - 1530000, Predrag Minovic
2009-12-05: Checked n = 1415000 - 1430023, 1454791 - 1455171, 1518147 - 1520000, Predrag Minovic
2009-11-24: Found n = 1419855, Predrag Minovic
2009-11-20: Checked n = 1414000 - 1415000, Predrag Minovic
2009-11-03: Checked n = 1350000 - 1375000, 1400000 - 1414000, Adam Sutton
2009-11-03: Checked n = 1375000 - 1400000, Predrag Minovic
2009-07-26: Checked to n = 1330000, Adam Sutton ?, See limit at RPS other completed ranges.
2009-01-18: Checked n = 3499107 - 3563355, Peter Benson
2009-01-10: Checked n = 1330000 - 1430000?, Adam Sutton
2009-01-09: Checked n = 1430023 - 1454791, 1455171 - 1518147, 1652067 - 1810159, 1967643 - 2105191, 2366487 - 2406243, Peter Benson
2009-01-09: Checked n = 950000 - 1067108, 1140015 - 1221087, Peter Benson
2008-08-27: Found n = 2060941, Peter Benson
2008-04-12: Found n = 1481821, Peter Benson
2008-02-29: Checked n = 850000 - 1200000, Adam Sutton
2008-02-01: Reserved by Adam Sutton from n = 1000000
2007-12-29: none, Jeffrey Sax, released
2007-11-15: Found n = 1010277, Peter Benson
2007-04-07: Checked n = 801000 - 850000, Jeffrey Sax
2007-04-07: Reserved by Jeffrey Sax
2005-02-03: Found n = 828709, Jeffrey Sax
2005-01-16: Checked n = 744000 - 801000, Jeffrey Sax
2004-11-28: Checked n = 250000 - 744000, Jeffrey Sax, Riesel list confirms range fully searched
2004-07-24: Found n = 503893, Jeffrey Sax
2004-07-14: Found n = 484975, Jeffrey Sax
2004-06-13: Found n = 384243, Jeffrey Sax
2004-05-23: Found n = 275859, Jeffrey Sax
2004-04-07: Checked n = 1 - 250000, James P. Burt
2004-04-04: Checked n = 191500 - 225000, James P. Burt
2004-03-31: Reserved by James P. Burt for sieving only n = 191500 - 1000000
2000-04-03: Found n = 184999, Ingo Buechel, Wilfrid Keller
1999-02-14: Found n = 103059, Ingo Buechel, Wilfrid Keller
1999-01-15: Found n = 83415, Ingo Buechel, Wilfrid Keller
1998-06-16: Found n = 23647, Wilfrid Keller
1998-06-16: Found n = 22555, Wilfrid Keller
1989: Found n = 35647, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown
1981: Found n = 12495, Anders Björn, Hans Riesel
1980: Found n = 8007, Jurgen Buhl, Walter Borho
1980: Found n = 7939, Jurgen Buhl, Walter Borho
1980: Found n = 5893, Jurgen Buhl, Walter Borho
1980: Found n = 5815, Jurgen Buhl, Walter Borho
1980: Found n = 5589, Jurgen Buhl, Walter Borho
1980: Found n = 3349, Jurgen Buhl, Walter Borho
1979: Found n = 11547, Jurgen Buhl, Walter Borho

[1] Jump up ↑ Twin n=1

[2] Jump up ↑ Twin n=3, Williams 9•8¹-1

[3] Jump up ↑ Twin n=7

[4] Jump up ↑ Williams 9•8⁵-1

[5] Jump up ↑ Williams 9•8⁷-1

[6] Jump up ↑ Twin n=43

[7] Jump up ↑ Twin n=63, Woodall 9•128⁹-1, Williams 9•8²¹-1

[8] Jump up ↑ Woodall 9•2048⁹-1, Williams 9•8³³-1

[9] Jump up ↑ Woodall 18•64¹⁸-1

[10] Jump up ↑ Williams 9•8⁵³-1

[11] Jump up ↑ Twin n=211

[12] Jump up ↑ Williams 9•8¹⁰³-1

[13] Jump up ↑ Woodall 18•524288¹⁸-1

[14] Jump up ↑ Woodall 72•8192⁷²-1, Williams 9•8³¹³-1

[15] Jump up ↑ Williams 9•8⁵¹⁷-1

[16] Jump up ↑ Williams 9•8¹⁸⁶³-1

[17] Jump up ↑ Williams 9•8²⁶⁶⁹-1

[18] Jump up ↑ Williams 9•8³⁸⁴⁹-1

[19] Jump up ↑ Williams 9•8⁴¹⁶⁵-1

[20] Jump up ↑ Williams 9•8²⁷⁸⁰⁵-1

[21] Jump up ↑ Williams 9•8³⁴³⁵³-1

[22] Jump up ↑ Williams 9•8⁹¹⁹⁵³-1

[23] Jump up ↑ Williams 9•8¹²⁸⁰⁸¹-1

[24] Jump up ↑ Williams 9•8³³⁶⁷⁵⁹-1

[25] Jump up ↑ Williams 9•8⁴⁷³²⁸⁵-1

[26] Jump up ↑ Williams 9•8^1561185-1

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@@ Line 100: / Line 100: @@
 {{HistC|2008-02-29|850000-1200000|Adam Sutton|M#167709}}
 {{HistR|2008-02-01|Adam Sutton|M#162252}} from {{Rn|1000000|1000000}}
+{{HistC|2007-12-29|none|Jeffrey Sax|M#159849}}, released
 {{HistF|2007-11-15|1010277|Peter Benson|M#153940}}
 {{HistC|2007-04-07|801000-850000|Jeffrey Sax|M#134748}}
+{{HistR|2007-04-07|Jeffrey Sax|M#134748}}
 {{HistF|2005-02-03|828709|Jeffrey Sax|M#64894}}
 {{HistC|2005-01-16|744000-801000|Jeffrey Sax|M#64232}}
-{{HistC|2004-11-28|744000|Jeffrey Sax|M#61680}}
+{{HistC|2004-11-28|250000-744000|Jeffrey Sax|M#61680}}, [https://web.archive.org/web/20041204075531/http://www.15k.org/riesellist.htm Riesel list] confirms range fully searched
 {{HistF|2004-07-24|503893|Jeffrey Sax}}
 {{HistF|2004-07-14|484975|Jeffrey Sax}}

Difference between revisions of "Riesel prime 2 9"

Revision as of 18:02, 24 April 2025

Current data

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History

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