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Generalized Cullen primes of the form n•4n+1

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Current data

ASCII format : n*4^n+1
Base : 4
Count : 13
Max n : 250,000
Date : 2018-08-14
1[1], 3[2], 7[3], 33[4], 67[5], 223[6], 663[7], 912[8], 1383[9], 3777[10], 3972[11], 10669[12], 48375[13]
Remarks :
The sequence A007646 in OEIS

Notes

  1. Jump up ↑ Proth 22+1
  2. Jump up ↑ Proth 3•26+1
  3. Jump up ↑ Proth 7•214+1
  4. Jump up ↑ Proth 33•266+1
  5. Jump up ↑ Proth 67•2134+1
  6. Jump up ↑ Proth 223•2446+1
  7. Jump up ↑ Proth 663•21326+1
  8. Jump up ↑ Proth 57•21828+1
  9. Jump up ↑ Proth 1383•22766+1
  10. Jump up ↑ Proth 3777•27554+1
  11. Jump up ↑ Proth 993•27946+1
  12. Jump up ↑ Proth 10669•221338+1
  13. Jump up ↑ Proth 48375•296750+1

History

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