Riesel primes of the form 225•2n-1

Reserved! This sequence is currently reserved by: Thomas Ritschel

Current data

k , b : 225 , 2 Type : 315 Count : 25 Nash : 1430 Max n : 2,000,000 Date : 2021-11-20 Reserved : Thomas RitschelThomas Ritschel/Reserved

1, 23, 25, 53, 65, 139, 149, 481, 613, 1343, 1601, 2125, 4385, 9005, 9169, 57013, 99821, 113893, 162653, 206293, 491135, 1123975, 1177945, 1395649, 1620601

History

• 2021-11-20: Reserved by Thomas Ritschel
• 2014-10-05: Checked to n = 2000000, Predrag Minovic, released
• 2013-09-08: Checked to n = 1700000, Predrag Minovic
• 2013-07-09: Checked to n = 1625000, Predrag Minovic
• 2013-07-05: Found n = 1620601, Predrag Minovic
• 2013-01-04: Checked to n = 1400000, Predrag Minovic
• 2012-12-21: Found n = 1395649, Predrag Minovic
• 2012-09-15: Checked to n = 1200000, Predrag Minovic
• 2012-09-07: Found n = 1123975, Predrag Minovic
• 2012-09-05: Found n = 1177945, Predrag Minovic
• 2012-08-20: Checked to n = 1060000, Predrag Minovic
• 2005-04-11: Found n = 491135, Thomas Masser
• 2004-11-29: Found n = 206293, Thomas Masser