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Riesel primes of the form 15•2n-1

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Current data

k , b : 15 , 2
Type : 315
Count : 58
Nash : 2221
Max n : 7,000,000
Date : 2024-09-02
1[1], 2[2], 4[3], 5, 10[4], 14[5], 17, 31[6], 41, 73, 80[7], 82, 116[8], 125, 145, 157, 172[9], 202, 224[10], 266, 289, 293, 463, 1004[11], 1246, 2066, 2431, 2705, 4622, 5270, 7613, 21727, 21962, 40742, 41054, 60622, 83263, 83669, 91457, 103940[12], 104177, 108124[13], 115327, 161453, 172714, 454681, 568780[14], 656264[15], 712294, 902474, 1084010, 1344313, 1837873, 2323205, 3668194, 6429089, 6993631, 9482269
Remarks :
The sequence A002237 in OEIS
See also Williams 15•16n-1

Notes

  1. ↑ Sophie Germain n=1, Twin n=1
  2. ↑ Twin n=2
  3. ↑ Sophie Germain n=4, Twin n=4, Williams 15•161-1
  4. ↑ Twin n=10
  5. ↑ Near Woodall 15•214-1
  6. ↑ Woodall, Woodall 30•230-1
  7. ↑ Williams 15•1620-1
  8. ↑ Williams 15•1629-1
  9. ↑ Williams 15•1643-1
  10. ↑ Williams 15•1656-1
  11. ↑ Williams 15•16251-1
  12. ↑ Williams 15•1625985-1
  13. ↑ Williams 15•1627031-1
  14. ↑ Williams 15•16142195-1
  15. ↑ Williams 15•16164066-1

History

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