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Riesel primes of the form 551•2ⁿ-1

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Revision as of 21:30, 13 August 2022 by Gd barnes (talk | contribs) (add history)

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

Current data

`k` , `b` :	551 , 2
Count :	23
Nash :	1047
Max `n` :	2,800,000
Date :	2024-01-17
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

2, 34, 66, 162, 226, 442, 778, 1238, 2882, 3058, 3582, 6522, 11002, 11366, 27726, 44066, 56066, 87806, 92454, 140698, 1501694, 1583718, 1671546

History

2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
2022-02-20: Found n = 1671546, Gary Barnes
2018-12-04: Found n = 1583718, Dmitry Domanov
2017-07-29: Found n = 1501694, Timothy Sorbera
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
2008-03-25: Checked to n = 333200, NPLB Drive 2
2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
2004-01-04: Found n = 140698, Steven Harvey
2001-12-20: Found n = 92454, Kimmo Herranen
2001-12-20: Found n = 87806, Kimmo Herranen

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