Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3).

Navigation

Topics

Help • Register • News • History • How to • Sequences statistics • Template prototypes

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

From Prime-Wiki

Revision as of 08:26, 20 September 2019 by Karbon (talk | contribs) (templ. NPr)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Jump to: navigation, search

Current data

ASCII format :	n*3^n+1
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

Retrieved from "https://www.rieselprime.de/z/index.php?title=Cullen_prime_3&oldid=5879"

Cullen prime