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Generalized Cullen primes of the form n•10n+1
Current data
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Remarks : |
The sequence A007647 in OEIS See additional history at Generalized Cullen primes & Discoverers of Generalized Cullen primes. |
Notes
History
- 2023-05-28: Checked n = 100000 - 500000, Mark Rodenkirch, double-check n = 100000 - 274178, released
- 2023-05-28: Found n = 403765, Mark Rodenkirch
- 2023-04-28: Reserved by Mark Rodenkirch to n = 500000
- 2023-04-23: Checked n = 2 - 100000, Mark Rodenkirch, double-check
- 2014: Checked n = 23490 - 274178, Günter Löh
- 2010-02-14: Found n = 207777, Günter Löh
- 2000-11-20: Found n = 105994, Günter Löh
- 2000: Checked n = 5228 - 23490, Wilfrid Keller
- 1999-08-18: Found n = 49521, Günter Löh
- 1989: Checked n = 1 - 5228, Harvey Dubner
- 1989: Found n = 4839, Harvey Dubner
- 1989: Found n = 2161, Harvey Dubner
