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 21•2n-1

From Prime-Wiki
Revision as of 17:33, 26 May 2020 by Karbon (talk | contribs) (RCount)
Jump to: navigation, search
Reserved! This sequence is currently reserved by: Predrag Minovic

Current data

k , b : 21 , {{{Rb}}}
Count : 43
Nash : 2103
Max n : 2,890,000
Date : 2015-03-01
Reserved : Predrag MinovicPredrag Minovic/Reserved
1[1], 2[2], 3, 7[3], 10, 13, 18, 27, 37, 51, 74, 157, 271, 458, 530, 891, 1723, 1793, 1849, 1986, 2191, 2869, 4993, 7777, 11730, 15313, 29171, 35899, 36227, 71570, 199219, 233914, 297499, 332523, 348547, 538657, 986130, 999599, 1170083, 1182083, 1452771, 1872923, 2160479

[[Category:Riesel {{{Rb}}}|#.....00021]][[Category:Riesel {{{Rb}}} Missing-range‎|#.....00021]]

Notes

  1. S.G. n=1, Twin n=1
  2. S.G. n=2
  3. Twin n=7

History