Riesel primes of the form 805•2ⁿ-1

Reserved! This sequence is currently part of Multi Reservation 3: NPLB Drive 18.

Current data

`k` , `b` :	805 , {{{Rb}}}
Count :	40
Nash :	1928
Max `n` :	2,200,000
Date :	2024-07-30
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

1, 5, 13, 23, 217, 243, 255, 461, 553, 571, 667, 1143, 2237, 2653, 3483, 3805, 5353, 10387, 22785, 31695, 38147, 44105, 44497, 50647, 53037, 72337, 80887, 111775, 174751, 314133, 339747, 360477, 363243, 375183, 376063, 444693, 647277, 789495, 1418871, 1565131

[[Category:Riesel {{{Rb}}}|#.....00805]]

2020-09-23: Found n = 1565131, Gary Barnes, originally found by Max Dettweiler
2016-01-10: Found n = 1418871, Max Dettweiler
2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
2011-02-24: Found n = 789495, Chris Chatfield
2009-03-03: Found n = 647277, Ian M. Gunn
2008-12-22: Checked to n = 600000, NPLB Drive 1, released
2008-12-19: Reserved by NPLB Drive 7, for 600000<n<=1000000
2008-05-24: Found n = 444693, Carlos Eduardo Pinho
2008-03-25: Checked to n = 333200, NPLB Drive 2, released
2008-03-16: Found n = 376063, Carlos Eduardo Pinho
2008-03-13: Found n = 375183, James P. Burt
2008-02-22: Found n = 363243, David James
2008-02-20: Found n = 360477, Gary Barnes
2008-01-31: Found n = 339747, Gary Barnes
2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
2002-09-27: Found n = 111775, Kimmo Herranen
2000-03-28: Found n = 44497, Bouk de Water