Riesel primes of the form 201•2n-1

Reserved! This sequence is currently reserved by: Michael Curtis

Current data

k , b : 201 , 2 Type : 3 Count : 72 Nash : 3211 Max n : 3,540,000 Date : 2023-07-17 Reserved : Michael CurtisMichael Curtis/Reserved

1, 3, 9, 10, 14, 17, 21, 37, 57, 66, 70, 87, 94, 99, 123, 141, 147, 183, 207, 246, 269, 291, 313, 341, 361, 363, 615, 743, 1318, 1515, 1798, 2413, 2797, 3254, 3826, 7574, 11770, 15029, 21313, 21543, 21637, 30289, 31078, 37511, 70919, 80238, 81215, 81459, 85995, 121215, 134735, 147429, 164255, 193141, 254039, 285534, 302666, 356889, 374891, 376594, 382059, 432315, 434118, 484583, 520586, 540810, 775453, 799611, 840735, 1183137, 1249030, 2421514

History

• 2023-07-17: Checked to n = 3540000, Michael Curtis
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2020-03-13: Checked to n = 3200000, Michael Curtis
• 2017-07-03: Checked to n = 3000000, Michael Curtis
• 2016-07-01: Found n = 2421514, Michael Curtis
• 2016-01-03: Checked to n = 2000000, Michael Curtis
• 2015-05-05: Checked to n = 2000000, Michael Curtis
• 2015-04-01: Checked to n = 1770000, Michael Curtis
• 2014-10-05: Checked to n = 1540000, Michael Curtis
• 2014-03-07: Checked to n = 1500000, Michael Curtis
• 2013-12-07: Checked to n = 1480000, Michael Curtis
• 2013-06-11: Checked to n = 1450000, Michael Curtis
• 2012-05-04: Checked to n = 1380000, Michael Curtis
• 2011-12-07: Found n = 1249030, Michael Curtis
• 2011-12-04: Checked to n = 1230000, Michael Curtis
• 2010-10-28: none, Michael Curtis
• 2010-03-21: Checked to n = 1200000, Michael Curtis
• 2010-01-20: Found n = 1183137, Michael Curtis
• 2010-01-12: none, Michael Curtis
• 2009-09-01: Checked to n = 1170000, Michael Curtis
• 2009-07-30: Reserved by Borys Jaworski for sieving only n=1200000-5000000
• 2009-02-13: Checked to n = 1110000, Michael Curtis
• 2008-07-14: Checked to n = 1040000, Michael Curtis
• 2008-04-30: Checked to n = 1000000, Michael Curtis
• 2008-03-15: Checked to n = 950000, Michael Curtis
• 2008-02-22: none, Michael Curtis
• 2008-01-13: Checked to n = 900000, Michael Curtis
• 2007-12-12: Found n = 799611, Michael Curtis
• 2007-11-21: Checked to n = 860000, Michael Curtis
• 2007-11-12: Found n = 840735, Michael Curtis
• 2007-10-24: Checked to n = 825000, Michael Curtis
• 2007-09-25: Found n = 775453, Michael Curtis
• 2007-09-10: Checked to n = 775000, Michael Curtis
• 2007-07-30: Checked to n = 700000, Michael Curtis
• 2007-07-18: Checked to n = 640000, Michael Curtis
• 2007-04-09: Found n = 540810, Michael Curtis
• 2007-04-03: Found n = 520586, Michael Curtis
• 2006-12-08: Found n = 484583, Michael Curtis
• 2006-11-20: Found n = 434118, Michael Curtis
• 2006-11-20: Found n = 432315, Michael Curtis
• 2006-11-28: Found n = 382059, Michael Curtis
• 2006-11-28: Found n = 376594, Michael Curtis
• 2006-11-28: Found n = 374891, Michael Curtis
• 2006-11-17: Found n = 356889, Michael Curtis
• 2006-11-13: Found n = 302666, Michael Curtis
• 2006-08-23: Found n = 285534, Michael Curtis
• 2005-08-18: Found n = 254039, Dale Andrews
• 2004-07-26: Found n = 193141, Mark Anderson
• 1989: Found n = 15029, Sergio Zarantonello, Joel Smith, Gene Smith, Bodo Parady, Landon Curt Noll, John Brown