Riesel primes of the form 561973•2n-1

Reserved! This sequence is currently reserved by: (Harklo73)

Current data

k , b : 561973 , 2 Count : 32 Nash : 1333 Max n : 505,000 Date : 2022-05-19 Reserved : (Harklo73)(Harklo73)/Reserved

7, 15, 23, 27, 43, 79, 95, 107, 135, 191, 315, 539, 543, 551, 683, 851, 915, 939, 1519, 1915, 2639, 7063, 8055, 25839, 39495, 43855, 57031, 58011, 71143, 406887, 504859, 639231

History

• 2022-05-19: Found n = 639231, (Harklo73)
• 2022-03-25: Checked to n = 500000, Gary Barnes, double-check, results included
• 2022-02-16: Checked to n = 505000, (Harklo73)