Riesel primes of the form 97•2ⁿ-1

Current data

1, 9, 45, 177, 585, 1409, 2617, 3465, 6981, 843205, 2374485, 4066717

2024-04-23: Checked to n = 7000000, Thomas Ritschel, released
2021-03-21: Checked n = 1 - 1000000, Gary Barnes, double check, results included
2019-12-17: Checked to n = 5000000, Thomas Ritschel
2019-09-28: Checked to n = 4000000, Thomas Ritschel
2019-09-27: Found n = 4066717, Thomas Ritschel
2018-09-12: Found n = 2374485, Thomas Ritschel
2018-05-23: Reserved by Thomas Ritschel, from n=2300000
2014-10-05: Checked to n = 2300000, Predrag Minovic, released
2013-01-04: Checked to n = 1920000, Predrag Minovic
2011-12-31: Checked to n = 1760000, Predrag Minovic
2011-04-12: Checked to n = 1670000, Predrag Minovic
2011-03-05: Checked to n = 1600000, Predrag Minovic
2011-01-13: Checked to n = 1500000, Predrag Minovic
2010-10-31: Checked to n = 1360000, Predrag Minovic
2010-09-05: Checked to n = 1230000, Predrag Minovic
2010-04-11: Checked to n = 1150000, Predrag Minovic
2010-02-11: Checked to n = 1120000, Predrag Minovic
2007-11-01: Checked n = 830000 - 930000, Predrag Minovic
2007-10-31: Reserved by Carlos Eduardo Pinho
2006-01-24: Found n = 843205, Predrag Minovic
1994: Found n = 6981, Harvey Dubner