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Riesel primes of the form 401•2ⁿ-1

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Reserved! This sequence is currently part of Multi Reservation 8: NPLB Drive 17.

Current data

`k` , `b` :	401 , 2
Type :	Low
Count :	14
Nash :	737
Max `n` :	2,820,000
Date :	2024-03-09
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

10, 22, 238, 478, 1122, 1410, 6394, 8634, 58338, 71790, 90250, 362310, 524862, 1663390

History

2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
2022-02-11: Found n = 1663390, Gary Barnes, NPLB Drive 13
2011-08-04: Reserved by NPLB Drive 13, for 1000000<n<2000000
2010-11-11: Checked to n = 1000000, NPLB Drive 5
2008-12-22: Checked to n = 600000, NPLB Drive 1
2008-12-19: Reserved by NPLB Drive 5, for 600000<n<1000000
2008-08-28: Found n = 524862, Gary Barnes, NPLB Drive 1
2008-03-25: Checked to n = 333200, NPLB Drive 2
2008-02-21: Found n = 362310, James P. Burt, NPLB Drive 1
2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
2008-01-21: Reserved by NPLB Drive 1, for 333201<n<600000
2001-03-04: Found n = 90250, Kimmo Herranen
2001-03-04: Found n = 71790, Kimmo Herranen

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