Riesel primes of the form 3775•2n-1

Current data

k , b : 3775 , 2 Type : Low Count : 10 Nash : 727 Max n : 540,000 Date : 2021-05-13

1, 1297, 15883, 20233, 122221, 141307, 231715, 231721, 309481, 325411

History

• 2021-05-13: Checked to n = 50000, Gary Barnes
• 2014-10-16: Checked n = 400000 - 540000, Karsten Bonath, tested missing pairs
• 2014-08-04: Checked n = 200000 - 400000, Karsten Bonath
• 2012-05-08: Checked to n = 200000, Oscar Tutusaus Santandreu
• 2010: Checked n = 400000 - 540000, Free-DC Drive 1
• 2009-06-28: Checked n = 10000 - 20000, Thomas Ritschel
• 2007-10-24: Found n = 1297, Jens Kruse Andersen