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Proth primes of the form 4•7n+1
Reserved! This sequence is currently reserved by: Ryan Propper |
Current data
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Remarks : |
sequence A204323 in OEIS For all even n-values 4•7n+1 is a Generalized Fermat number. |
History
- 2020-09-18: Found n = 1640811, Ryan Propper
- 2020-09-17: Reserved by Ryan Propper to n = 3000000
- 2024-09-16: Checked n = 1 - 300000, Gary Barnes, double-check n = 1 - 41500, released
- 2020-07-21: Checked n = 1 - 41500, Paul Vanderveen
- 2009-12-24: Found n = 266782, Brian Lody
- 2009-12-22: Found n = 254621, Brian Lody
- 2004-03-01: Found n = 94133, Peter Benson
- 1998-11-18: Found n = 16474, David W. Linton