Riesel primes of the form 157•2n-1

Reserved! This sequence is currently part of Multi Reservation 5: CRUS Liskovets-Gallot.

Current data

k , b : 157 , 2 Type : Low Count : 29 Nash : 917 Max n : 5,000,000 Date : 2023-07-11 Reserved : Conjectures 'R UsConjectures 'R Us/Reserved

1, 5, 33, 97, 121, 125, 305, 445, 473, 513, 1581, 3077, 3517, 6345, 8797, 15265, 16641, 32185, 32581, 43905, 77025, 84377, 202345, 230777, 234401, 473073, 802321, 869073, 1085121

History

• 2019-08-18: Checked to n = 2200000, RPS 2nd Megabit Drive
• 2011-06-04: Found n = 1085121, David Metcalfe, RPS 2nd Megabit Drive
• 2011-04-28: Reserved by RPS 2nd Megabit Drive for n > 1000000
• 2009-07-30: Reserved by Borys Jaworski from n=1000000
• 2009-01-11: Checked to n = 1000000, Gary Barnes
• 2009-01-11: none, Gary Barnes unreserved by Max Dettweiler
• 2008-05-18: Found n = 869073, Max Dettweiler
• 2008-05-02: Found n = 802321, Max Dettweiler
• 2008-03-03: Reserved by Max Dettweiler from n=500000
• 2006-03-15: Found n = 473073, Thomas Ritschel
• 2004-06-02: Found n = 234401, Thomas Ritschel
• 2004-06-02: Found n = 230777, Thomas Ritschel
• 2004-06-01: Found n = 202345, Thomas Ritschel
• 2000-01-17: Found n = 43905, Tom Kuechler