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Generalized Woodall primes of the form `n`•14ⁿ-1

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Reserved! This sequence is currently reserved by: Ryan Propper

Current data

Base :	14
Count :	15
Max `n` :	1,600,000
Date :	2023-04-29
Reserved :	Ryan PropperRyan Propper/Reserved

1, 3, 7, 98, 104, 128, 180, 834, 1633, 8000, 28538, 46605, 131941, 147684, 433734^[1]

Notes

↑ Riesel 30981•14⁴³³⁷³⁵-1

History

2023-04-29: Checked to n = 1600000, Ryan Propper
2023-04-19: Reserved by Ryan Propper for 1000000≤n≤1600000
2023-04-09: Checked to n = 1000000, Ryan Propper
2023-04-01: Reserved by Ryan Propper for n≤1000000
2015-10-16: Found n = 433734, Steven Harvey
2014-03-13: Checked to n = 25000, Steven Harvey
2010-11-01: Checked to n = 4000, Steven Harvey
2010-05-20: Found n = 147684, Mark Rodenkirch
2010-05: Found n = 131941, Mark Rodenkirch
2007-09: Found n = 46605, Kimmo Herranen
2003-01-15: Found n = 28538, Steven Harvey
2000-03-20: Found n = 8000, Dirk Augustin

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