Generalized Cullen primes of the form n•22n+1

Current data

ASCII format : n*22^n+1 Base : 22 Count : 6 Max n : 200,000 Date : 2023-04-25

1, 15, 189, 814, 19909, 72207

History

• 2023-04-25: Checked n = 100001 - 200000, Mark Rodenkirch, released
• 2023-14-17: Checked n = 2 - 100000, Mark Rodenkirch, double-checked, continuing reservation
• 2023-04-01: Reserved by Mark Rodenkirch
• ?: Checked to n = 137649, (?)
• 2005-12-23: Found n = 72207, Günter Löh
• 2000-05-20: Found n = 19909, Günter Löh