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Generalized Cullen primes of the form `n`•200ⁿ+1

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Current data

ASCII format :	n*200^n+1
Base :	200
Count :	6
Max `n` :	100,000
Date :	2015-12

3^[1], 21, 29, 305, 2494, 72358

Notes

↑ Twin n=3

History

2015-12: Checked n = 70000 - 100000, Steven Harvey
2015-12: Found n = 72358, Steven Harvey
2008-09: Checked n = 1 - 70000, Daniel Hermle
2000-02-05: Found n = 2494, Hans Rosenthal

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Cullen prime