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

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Current data

Base :	22
Count :	6
Max `n` :	200,000
Date :	2023-04-27

1, 15, 189, 814, 19909, 72207

History

2023-04-27: Checked n = 100001-200000, Mark Rodenkirch, released
2023-04-17: Checked to n = 100000, Mark Rodenkirch, double-checked
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
2000: Found n = 814, Wilfrid Keller

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Cullen prime