Riesel primes of the form 11•2n-1

Current data

k , b : 11 , 2 Type : Low Count : 26 Nash : 795 Max n : 8,000,000 Date : 2024-04-23

2, 26, 50, 54, 126, 134, 246, 354, 362, 950, 1310, 2498, 6926, 11826, 31734, 67850, 74726, 96150, 374114, 696438, 743322, 1044086, 1104606, 1261478, 4643238, 7971110

Remarks :

The sequence A001772 in OEIS

History

• 2024-04-23: Reservation dropped, Thomas Ritschel
• 2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
• 2019-12-17: Checked to n = 8000000, Thomas Ritschel
• 2019-11-25: Found n = 7971110, Thomas Ritschel
• 2019-09-28: Checked to n = 7500000, Thomas Ritschel
• 2018-12-03: Checked to n = 7000000, Thomas Ritschel
• 2018-04-11: Checked to n = 6650000, Thomas Ritschel
• 2018-01-03: Checked to n = 6450000, Thomas Ritschel
• 2017-08-03: Checked to n = 6250000, Thomas Ritschel
• 2017-05-02: Checked to n = 6050000, Thomas Ritschel
• 2017-01-01: Checked to n = 5850000, Thomas Ritschel
• 2016-11-02: Checked to n = 5750000, Thomas Ritschel
• 2016-08-21: Checked to n = 5600000, Thomas Ritschel
• 2016-07-01: Checked to n = 5500000, Thomas Ritschel
• 2016-06-04: Checked to n = 5400000, Thomas Ritschel
• 2016-05-01: Checked to n = 5300000, Thomas Ritschel
• 2016-04-03: Checked to n = 5200000, Thomas Ritschel
• 2016-01-06: Checked to n = 5000000, Thomas Ritschel
• 2015-11-02: Checked to n = 4800000, Thomas Ritschel
• 2015-01-04: Checked to n = 4660000, Thomas Ritschel
• 2014-03-31: Found n = 4643238, Thomas Ritschel
• 2014-02-28: Checked to n = 4300000, Thomas Ritschel
• 2013-04-23: Checked to n = 4000000, Thomas Ritschel
• 2013-04-07: Checked n = 2440000 - 3000000, Michael Curtis, released
• 2012-10-30: Checked to n = 3320000, Thomas Ritschel
• 2012-08-31: Checked to n = 3200000, Thomas Ritschel
• 2012-07-23: Checked n = 3000000 - 3100000, Thomas Ritschel
• 2011-12-04: Checked to n = 2440000, Michael Curtis
• 2011-06-02: Checked to n = 2410000, Michael Curtis
• 2010-10-28: Checked to n = 2180000, Michael Curtis
• 2010-03-21: Checked to n = 2100000, Michael Curtis
• 2010-01-12: Checked to n = 1940000, Michael Curtis
• 2009-09-01: Checked to n = 1880000, Michael Curtis
• 2009-02-13: Checked to n = 1840000, Michael Curtis
• 2008-10-28: Checked to n = 1600000, Michael Curtis
• 2008-07-14: Checked to n = 1550000, Michael Curtis
• 2008-01-13: none, Michael Curtis
• 2007-11-21: none, Michael Curtis
• 2007-10-24: none, Michael Curtis
• 2007-09-10: Sieving, Michael Curtis
• 2006-03-18: Found n = 1261478, Thomas Ritschel
• 2005-10-09: Found n = 1104606, Thomas Ritschel
• 2005-08-16: Found n = 1044086, Thomas Ritschel
• 2004-09-13: Found n = 743322, Thomas Ritschel
• 2004-08-31: Found n = 696438, Thomas Ritschel
• 2004-04-03: Found n = 374114, Thomas Ritschel
• 1999-08-27: Found n = 96150, Michael J. Graef
• 1998-07-28: Found n = 31734, Wilfrid Keller
• 1994: Found n = 6926, Harvey Dubner