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

Riesel primes of the form 4•3n-1

From Prime-Wiki
Revision as of 13:39, 16 March 2023 by Karbon (talk | contribs) (new)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

Current data

k , b : 4 , 3
Count : 31
Nash : 2359
Max n : 2,000,000
Date : 2021-01-26
1, 3, 5, 7, 15, 45, 95, 235, 463, 733, 1437, 1583, 1677, 1803, 4163, 4765, 9219, 9959, 25477, 26059, 41539, 54195, 65057, 74977, 116589, 192289, 311835, 350767, 353635, 416337, 423253
Remarks :
See H.C.Williams, C.R.Zarnke: "Some prime numbers of the forms 2A3^n+1 and 2A3^n-1" Math. Comp. 26 (1972), 995-998
The sequence A005540 in OEIS
See also Williams 4•3n-1

History