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Generalized Cullen primes of the form `n`•138ⁿ+1

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Current data

ASCII format :	n*138^n+1
Base :	138
Count :	5
Max `n` :	100,000
Date :	2015-12

1^[1], 5, 22^[2], 651, 657

Notes

↑ Twin n=1
↑ Twin n=22

History

2015-12: Checked n = 70000 - 100000, Steven Harvey
2008-09: Checked n = 1 - 70000, Daniel Hermle

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Cullen prime