| Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3). |
Navigation
| Topics | Help • Register • News • History • How to • Sequences statistics • Template prototypes |
Generalized Cullen primes of the form n•15n+1
Current data
|
|
Remarks : |
The sequence A242198 in OEIS |
Notes
- ↑ Twin n=14
- ↑ Proth 3962•1559431+1
History
- 2023-04-29: Checked n = 200000 - 1500000, Ryan Propper, released
- 2023-04-28: Found n = 551878, Ryan Propper
- 2023-04-28: Found n = 451554, Ryan Propper
- 2023-04-28: Reserved by Ryan Propper to n = 1500000
- 2023-04-27: Checked n = 100000 - 200000, Mark Rodenkirch, double-check n = 100000 - 136149, released
- 2023-04-17: Checked n = 2 - 100000, Mark Rodenkirch, double-check
- 2023-04-01: Reserved by Mark Rodenkirch to n = 200000
- 2011: Checked n = 10083 - 136149, Günter Löh
- 2001-10-05: Found n = 59430, Günter Löh
- 2000-07-05: Found n = 17426, Günter Löh
- 2000: Checked n = 3124 - 10083, Wilfrid Keller
- 1989: Checked n = 1 - 3124, Harvey Dubner
