Riesel primes of the form 205•2n-1

Reserved! This sequence is currently part of Multi Reservation 6: CRUS Liskovets-Gallot.

Current data

k , b : 205 , {{{Rb}}} Count : 39 Nash : 1351 Max n : 5,000,000 Date : 2022-03-04 Reserved : Conjectures 'R UsConjectures 'R Us/Reserved

1, 9, 39, 45, 49, 67, 75, 99, 129, 159, 177, 445, 721, 771, 829, 849, 865, 1971, 3045, 8397, 9019, 10749, 21037, 30529, 38349, 46257, 53577, 64695, 77451, 128019, 420297, 462261, 749859, 756705, 1019679, 1275889, 1300401, 1537779, 1666435

[[Category:Riesel {{{Rb}}}|#.....00205]]

History

• 2021-04-21: Checked to n = 2200000, RPS 3rd Megabit Drive
• 2017-05-14: Checked to n = 2102000, RPS 3rd Megabit Drive
• 2014-06-03: Found n = 1666435, Serge Batalov
• 2014-06-02: Found n = 1537779, Serge Batalov
• 2010-11-19: Found n = 1300401, Carlos Eduardo Pinho
• 2010-11-11: Found n = 1275889, Carlos Eduardo Pinho
• 2008-11-27: Found n = 1019679, Even Stokkedalen
• 2008-08-11: Found n = 756705, David Metcalfe
• 2008-08-11: Found n = 749859, David Metcalfe
• 2006-09-01: Found n = 462261, David Metcalfe
• 2006-08-24: Found n = 420297, J. Craig Brunson