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Generalized Woodall primes of the form `n`•19ⁿ-1

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Current data

ASCII format :	n*19^n-1
Base :	19
Count :	7
Max `n` :	400,000
Date :	?

12, 410, 33890, 91850, 146478, 189620^[1], 280524

Notes

↑ Riesel 9980•19¹⁸⁹⁶²¹-1

History

2015-08: Found n = 280524, Steven Harvey
2014-03-13: Checked to n = 25000, Steven Harvey
2010-11-01: Checked to n = 4000, Steven Harvey
2008-11-06: Found n = 189620, Hugo Platzer
2008-10-25: Found n = 146478, Hugo Platzer
2008-10-16: Found n = 91850, Hugo Platzer
2004-01-20: Found n = 33890, Steven Harvey

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Woodall prime