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Riesel primes of the form 863•2ⁿ-1

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Reserved! This sequence is currently part of Multi Reservation 3: NPLB Drive 18.

Current data

`k` , `b` :	863 , 2
Count :	26
Nash :	1043
Max `n` :	2,170,000
Date :	2024-04-02
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

4, 24, 64, 72, 94, 112, 180, 192, 222, 240, 552, 880, 2040, 2320, 3100, 3958, 4680, 4900, 7852, 9508, 19860, 81334, 92292, 111120, 601494, 1324270

History

2023-01-21: Reserved by NPLB Drive 18, for 2000000<n<3000000
2023-01-21: Checked to n = 2000000, NPLB Drive 14, released
2014-07-06: Found n = 1324270, Gary Barnes
2011-12-31: Reserved by NPLB Drive 14, for 1000000<n<=2000000
2011-07-11: Checked to n = 1000000, NPLB Drive 7, released
2008-12-22: Found n = 601494, Ian M. Gunn
2008-12-22: Checked to n = 600000, NPLB Drive 1, released
2008-12-19: Reserved by NPLB Drive 7, for 600000<n<=1000000
2008-03-25: Checked to n = 333200, NPLB Drive 2, released
2008-01-22: Reserved by NPLB Drive 2, for 260000<=n<=333200
2008-01-21: Reserved by NPLB Drive 1, for 333201<=n<=600000
2003-05-08: Found n = 111120, Steven Harvey

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