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Generalized Woodall primes of the form `n`•81ⁿ-1

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Current data

ASCII format :	n*81^n-1
Base :	81
Count :	5
Max `n` :	400,000
Date :	?

2, 20, 270, 508, 18248

History

2014-03-13: Checked to n = 25000, Steven Harvey
2010-11-01: Checked to n = 4000, Steven Harvey
2004-02: Found n = 18248, Steven Harvey

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Woodall prime