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Generalized Cullen primes of the form `n`•12ⁿ+1

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Revision as of 12:10, 9 October 2024 by Gd barnes (talk | contribs) (abandoned reservation dropped & add remark)

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Current data

Base :	12
Count :	8
Max `n` :	254,519
Date :	2024-10-09

1^[1], 8^[2], 247, 3610, 4775, 19789, 187895, 345951

Remarks :

The sequence A242196 in OEIS
See early history at Generalized Cullen primes

Notes

↑ Twin n=1
↑ Proth 6561•2¹⁹+1

History

2024-10-09: Reservation dropped, Yao Chen
2023-04-23: Checked n = 2 - 100000, Mark Rodenkirch, double-check
2022-02-12: Found n = 345951, Yao Chen
2020-11-18: Reserved by Yao Chen
?: Checked to n = 254519, (?)
2010-11-29: Found n = 187895, Günter Löh
2000-06-03: Found n = 19789, Günter Löh
2000: Found n = 4775, Wilfrid Keller
2000: Found n = 3610, Wilfrid Keller

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Cullen prime