A014223 Odd primes such that (3p+1)/2 and 3p+4 are also prime.

3, 11, 19, 31, 59, 131, 151, 179, 311, 431, 439, 619, 739, 811, 839, 1039, 1231, 1399, 1531, 1699, 1879, 1951, 2111, 2351, 2411, 2671, 2699, 2719, 2819, 2939, 3259, 3391, 3491, 4211, 4259, 4639, 5039, 5779, 6151, 6359

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Select[Prime[Range[2, 900]], And@@PrimeQ[{(3#+1)/2, 3#+4}]&] (* Harvey P. Dale, Nov 19 2011 *)

Crossrefs

Sequence in context: A038536 A175122 A031369 * A023265 A018557 A270528

Adjacent sequences: A014220 A014221 A014222 * A014224 A014225 A014226

Keyword

nonn

Author

Jud McCranie

Status

approved