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Generalized Cullen primes of the form `n`•6ⁿ+1

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Revision as of 18:59, 17 July 2023 by Ryanp (talk | contribs) (reserving base)

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Reserved! This sequence is currently reserved by: Ryan Propper

Current data

Base :	6
Count :	16
Max `n` :	2,000,000
Date :	2023-07-14
Reserved :	Ryan PropperRyan Propper/Reserved

1, 2, 91, 185, 387, 488, 747, 800, 9901, 10115, 12043, 13118, 30981, 51496, 515516, 1644731

Remarks :

The sequence A242176 in OEIS

History

2023-07-14: Checked to n = 2000000, Ryan Propper
2023-07-07: Found n = 1644731, Ryan Propper
2023-07-05: Found n = 515516, Ryan Propper
2023-05-28: Checked to n = 500000, Rodenkirch
2023-04-28: Reserved by Mark Rodenkirch to n=500000
2023-04-24: Checked n = 2-100000, Mark Rodenkirch, double-checked
?: Checked n = 123670 - 200000, Geoffrey Reynolds
2000-06-15: Found n = 51496, Günter Löh
2000-01-08: Found n = 30981, Günter Löh
1998-11-20: Found n = 13118, Wilfrid Keller
1998-11-20: Found n = 12043, Wilfrid Keller
1998-11-19: Found n = 10115, Wilfrid Keller
1998-11-19: Found n = 9901, Wilfrid Keller

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