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Generalized Woodall primes of the form `n`•22ⁿ-1

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Current data

Base :	22
Count :	9
Max `n` :	400,000
Date :	?

2, 5, 140, 158, 263, 795, 992, 6143, 341351

History

2017-09-22: Found n = 341351, Steven Harvey
2014-03-13: Checked to n = 25000, Steven Harvey
2010-11-01: Checked to n = 4000, Steven Harvey

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Woodall prime