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Riesel primes of the form 3•2n-1

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Reserved! This sequence is currently part of Multi Reservation 22: PrimeGrid 321 Prime Search.

Current data

k , b : 3 , 2
Type : 3
Count : 65
Nash : 2976
Max n : 22,021,811
Date : 2024-10-13
Reserved : PrimeGridPrimeGrid/Reserved
1[1], 2[2], 3[3], 4[4], 6[5], 7[6], 11, 18[7], 34, 38[8], 43, 55[9], 64, 76, 94, 103, 143, 206, 216, 306, 324, 391[10], 458, 470, 827, 1274, 3276, 4204, 5134, 7559, 12676, 14898, 18123, 18819, 25690, 26459, 41628, 51387, 71783, 80330, 85687, 88171, 97063, 123630, 155930, 164987, 234760, 414840, 584995, 702038, 727699, 992700, 1201046, 1232255, 2312734, 3136255, 4235414, 6090515, 11484018, 11731850, 11895718, 16819291, 17748034, 18196595, 18924988
Remarks :
The sequence A002235 in OEIS

Notes

  1. ↑ Sophie Germain n=1, Twin n=1
  2. ↑ Sophie Germain n=2, Twin n=2, Near Woodall 3•22-1
  3. ↑ Sophie Germain n=3, Woodall, Woodall 3•23-1
  4. ↑ Near Woodall 3•24-1
  5. ↑ Sophie Germain n=6, Twin n=6, Near Woodall 6•25-1
  6. ↑ Woodall, Woodall 6•26-1
  7. ↑ Twin n=18
  8. ↑ Woodall 12•812-1
  9. ↑ Woodall 6•5126-1
  10. ↑ Woodall, Woodall 384•2384-1

History

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