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Generalized Cullen primes of the form n•8n+1

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Current data

Base : 8
Count : 8
Max n : 800,000
Date : 2018-08-14
5[1], 17[2], 23[3], 1911[4], 20855[5], 35945[6], 42816[7], 749130[8]
Remarks :
The sequence A242178 in OEIS

Notes

  1. ↑ Proth 5•215+1
  2. ↑ Proth 17•251+1
  3. ↑ Proth 23•269+1
  4. ↑ Proth 1911•25733+1
  5. ↑ Proth 20855•262565+1
  6. ↑ Proth 35945•2107835+1
  7. ↑ Proth 669•2128454+1
  8. ↑ Proth 374565•22247391+1

History

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