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Generalized Cullen primes of the form `n`•140ⁿ+1

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Current data

ASCII format :	n*140^n+1
Base :	140
Count :	7
Max `n` :	100,000
Date :	2015-12

3, 48, 214, 539, 1188, 3724, 39694

History

2015-12: Checked n = 70000 - 100000, Steven Harvey
2008-09: Checked n = 1 - 70000, Daniel Hermle
2005-09-12: Found n = 39694, Daniel Hermle
2004-07: Found n = 3724, Daniel Hermle
2004-07: Found n = 1188, Daniel Hermle

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Cullen prime