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Riesel primes of the form 505•2ⁿ-1

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

Current data

`k` , `b` :	505 , 2
Type :	Low
Count :	22
Nash :	852
Max `n` :	2,820,000
Date :	2024-03-09
Reserved :	No Prime Left BehindNo Prime Left Behind/Reserved

1, 11, 31, 47, 241, 1363, 1681, 3277, 3527, 3799, 4297, 4801, 5071, 19127, 22609, 34621, 35083, 61249, 78679, 99671, 1165307, 1873631

History

2022-08-10: Checked to n = 2000000, NPLB Drive 13, released
2022-08-09: Reserved by NPLB Drive 17, for 2000000<n<3000000
2022-05-31: Found n = 1873631, Florian Piesker
2012-12-14: Found n = 1165307, Göran Schmidt
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

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