Generalized Woodall primes of the form n•3n-1

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Reserved! This sequence is currently reserved by: Predrag Minovic

Current data

Base : 3
Count : 25
Max n : 1,058,000
Date : 2015
Reserved : Predrag MinovicPredrag Minovic/Reserved
1, 2[1], 6, 10, 18[2], 40, 46, 86, 118, 170, 1172, 1698, 1810, 2268[3], 4338[4], 18362, 72662, 88392[5], 94110[6], 161538[7], 168660[8], 292340, 401208[9], 560750, 1035092
Remarks :
The sequence A006553 in OEIS

Notes

  1. Twin, 2•32-1
  2. 2•320-1
  3. 28•32272-1
  4. 482 •34340-1
  5. 29464•388393-1
  6. 31370•394110-1
  7. 53846•3161539-1
  8. 18740•3168662-1
  9. 133736•3401209-1

History