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Riesel primes of the form 3981•2n-1

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Current data

k , b : 3981 , 2
Type : 3
Count : 64
Nash : 2965
Max n : 540,000
Date : 2016-08-02
2[1], 3[2], 6, 9, 13[3], 14, 17, 26, 30, 39, 47, 49, 61[4], 67, 89, 126, 170, 191, 330, 443, 561, 566, 597, 773, 817, 849, 1086, 1274, 1631, 1997, 2106, 2186, 2523, 3194, 3282, 3753, 4786, 5094, 5831, 11674, 13153[5], 17843, 17903, 20099, 27583, 35701, 38210, 42290, 45699, 53014, 110399, 148327, 160734, 245743, 252522, 263751, 267254, 473783, 481407, 505970, 1292566, 1294922, 1322239, 1353819

Notes

  1. S.G. n=2
  2. Twin n=3
  3. S.G. n=13, Twin n=13
  4. Twin n=61
  5. Twin n=13153

History