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Generalized Cullen primes of the form n•3n+1

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Current data

ASCII format : n*3^n+1
Base : 3
Count : 14
Max n : 1,200,000
Date : 2019-04-28
2, 8, 32, 54[1], 114[2], 414[3], 1400, 1850, 2848, 4874, 7268, 19290[4], 337590[5], 1183414
Remarks :
The sequence A006552 in OEIS

Notes

  1. ↑ Proth 2•357+1
  2. ↑ Proth 48•3115+1
  3. ↑ Proth 46•3416+1
  4. ↑ Proth 6430•319291+1
  5. ↑ Proth 37510•3337592+1

History

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