Riesel primes of the form 205•2n-1

Reserved! This sequence is currently part of Multi Reservation 6: [[]].

Current data

k , b : 205 , 2 Count : 39 Nash : 1351 Max n : Date :

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:|#.....00205]]

History

• 2021-03-21: Checked n = 1-1000000, Gary Barnes, double check, results included
• 2014-06-03: Found n = 1666435, Serge Batalov, RPS 3rd Megabit Drive
• 2014-06-02: Found n = 1537779, Serge Batalov, RPS 3rd Megabit Drive
• 2014-05-30: Reserved by RPS 3rd Megabit Drive for n > 1400000
• 2011-02-01: Checked to n = 1400000, RPS Drive 6, released
• 2010-11-19: Found n = 1300401, Carlos Eduardo Pinho, RPS Drive 6
• 2010-11-11: Found n = 1275889, Carlos Eduardo Pinho, RPS Drive 6
• 2008-11-27: Found n = 1019679, Even Stokkedalen, RPS Drive 6
• 2008-08-11: Found n = 756705, David Metcalfe, RPS Drive 6
• 2008-08-11: Found n = 749859, David Metcalfe, RPS Drive 6
• 2008-06-22: Reserved by RPS Drive 6, for n > 600000
• 2006-12-16: Checked to n = 600000, RPS Drive 4, released
• 2006-09-01: Found n = 462261, David Metcalfe, RPS Drive 4
• 2006-08-24: Found n = 420297, J. Craig Brunson, RPS Drive 4
• 2006-07-28: Reserved by RPS Drive 4, for n = 260000 - 600000