Riesel primes of the form 307•2ⁿ-1

Current data

1, 13, 17, 29, 53, 361, 34117, 408953, 2137553

2024-08-15: Checked to n = 5000000, NPLB Drive High-n, released
2022-06-03: Reserved by NPLB Drive High-n, for 3000000<n<5000000
2022-06-03: Checked to n = 3000000, NPLB Drive 15, released
2015-04-20: Found n = 2137553, Stuart Mullage
2014-12-29: Reserved by NPLB Drive 15, for n=2000000-3000000
2012-01-05: Checked to n = 200000, Lennart Vogel
2011-12-31: Reserved by Lennart Vogel
2010-05-19: Checked to n = 1100000, Vincent Gautier, released, results included
2010-04-26: Reserved by Vincent Gautier, for 1000000<n<1100000
2008-11-10: Checked to n = 600000, NPLB Drive 3, released
2008-08-30: Checked n = 900000 - 1000000, Carlos Eduardo Pinho, results not available anymore
2008-08-19: Checked n = 800000 - 850000, Carlos Eduardo Pinho, results included
2008-08-16: Checked to n = 800000, Carlos Eduardo Pinho, results included
2008-07-20: Checked n = 850000 - 900000, Carlos Eduardo Pinho, results included
2008-07-20: Checked to n = 700000, Carlos Eduardo Pinho, results included
2008-07-18: Checked to n = 671000, Carlos Eduardo Pinho, also n=850000-887000
2008-06-17: Checked to n = 642000, Carlos Eduardo Pinho
2008-05-09: Reserved by Carlos Eduardo Pinho, for 600000<n<1000000
2008-03-01: Reserved by NPLB Drive 3, for 260000<n<600000
2007-07-31: Found n = 408953, James S. Griffin