Riesel primes of the form 19401•2ⁿ-1

Current data

5, 9, 131, 275, 281, 365, 383, 2133, 3705, 6575, 9299, 10089, 18335, 31353, 297509, 3086450^[1]

Remarks :

History is for odd n only unless specified. For CRUS Liskovets-Gallot even n history, see Riesel 14361•4ⁿ-1.

2023-12-07: Checked n = 600000 - 1000000, Alexander Jones
2023-03-23: Checked n = 500000 - 600000, Alexander Jones
2023-03-14: Sieve file created: n = 600000-3100000 (all n), 150000-600000 (even n only), Alexander Jones, yoyo@home
2022-03-31: Checked n = 300000 - 500000, Alexander Jones
2022-01-10: Checked n = 150000 - 300000, Alexander Jones
2021-12-22: Checked to n = 150000, Alexander Jones
2015-06-13: Found n = 3086450, Gary Barnes, CRUS Liskovets-Gallot
2015-04-29: Checked to n = 3000000 (only even n), (PRPnet port 1400), Conjectures 'R Us
2008-01-19: Checked to n = 132000, Karsten Bonath