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Generalized Woodall primes of the form `n`•3ⁿ-1

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Reserved! This sequence is currently reserved by: Ryan Propper

Current data

ASCII format :	n*3^n-1
Base :	3
Count :	27
Max `n` :	1,200,000
Date :	2023-04-22
Reserved :	Ryan PropperRyan Propper/Reserved

1, 2^[1], 6^[2], 10^[3], 18^[4], 40, 46, 86, 118, 170, 1172, 1698^[5], 1810, 2268^[6], 4338^[7], 18362, 72662, 88392^[8], 94110^[9], 161538^[10], 168660^[11], 292340, 401208^[12], 560750, 1035092, 1934244^[13], 2456292^[14]

Remarks :

The sequence A006553 in OEIS

Notes

History

2023-04-22: Found n = 2456292, Ryan Propper
2023-04-21: Found n = 1934244, Ryan Propper
2023-04-21: Reserved by Ryan Propper
2013-06-17: Found n = 1035092, Predrag Minovic
2011-08-18: Found n = 560750, Ricky L. Hubbard
2004-11-08: Found n = 401208, Predrag Minovic
2004-08-17: Found n = 292340, Predrag Minovic
2004-04-20: Found n = 168660, Predrag Minovic
2004-04-19: Found n = 161538, Predrag Minovic
2004-02: Found n = 94110, Steven Harvey
2003-11-03: Found n = 88392, Steven Harvey
2000-05-04: Found n = 72662, Yves Gallot
2000-02-07: Found n = 18362, Ray Ballinger
1997-03-03: Found n = 4338, Carlos Rivera

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