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Generalized Cullen primes of the form `n`•3ⁿ+1

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Current data

Base :	3
Count :	14
Max `n` :	1,200,000
Date :	2019-04-28

2, 8, 32, 54, 114, 414, 1400, 1850, 2848, 4874, 7268, 19290^[1], 337590^[2], 1183414

Remarks :

The sequence A006552 in OEIS

Notes

History

2014: Checked n = 166800 - 1200000, Predrag Minovic
2014-01-20: Found n = 1183414, Predrag Minovic
2006-06-02: Found n = 337590, Predrag Minovic
1998-11-12: Found n = 19290, Wilfrid Keller
2000-01-26: Found n = 7268, Chun Wa Lau
1989: Found n = 4874, Harvey Dubner
1989: Found n = 2848, Harvey Dubner

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Cullen prime