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 Megabit Drive 2
• 2011-06-04: Found n = 1085121, David Metcalfe, RPS Megabit Drive 2
• 2011-04-28: Reserved by RPS Megabit Drive 2 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
• 2006-03-23: Checked to n = 500000, Thomas Ritschel, released
• 2006-03-15: Found n = 473073, Thomas Ritschel
• 2006-02-06: Reserved by Thomas Ritschel
• 2004-06-18: Checked to n = 250000, Thomas Ritschel, released
• 2004-06-02: Found n = 234401, Thomas Ritschel
• 2004-06-02: Found n = 230777, Thomas Ritschel
• 2004-06-01: Found n = 202345, Thomas Ritschel
• 2004-06-01: Checked to n = 200000, Thomas Ritschel
• 2004-05-26: Reserved by Thomas Ritschel
• 2000-01-17: Found n = 43905, Tom Kuechler