A145489 Numbers k such that 6k + 11 is prime and 12k + 5 is also prime.

0, 1, 2, 3, 7, 8, 12, 16, 21, 23, 26, 37, 38, 42, 43, 47, 51, 56, 58, 63, 68, 73, 78, 91, 92, 98, 101, 106, 107, 108, 133, 136, 141, 142, 156, 157, 162, 173, 192, 196, 201, 203, 212, 218, 227, 233, 236, 238, 246, 247, 257, 267, 268, 271, 287, 296, 306, 313, 316, 323, 327, 332, 346, 353, 357, 366, 367, 371, 376, 387, 401, 406, 411, 423, 441, 442, 448, 453, 471, 472, 478, 483, 488, 491, 498

Offset

1,3

Links

Ivan Neretin, Table of n, a(n) for n = 1..10000

Formula

a(n) = (A145475(n) - 5)/12.

Mathematica

Select[Range[0, 500], PrimeQ[6# + 11 ] && PrimeQ[12# + 5]&]

Prog

(PARI) isok(n) = isprime(6*n+11) && isprime(12*n+5); \\ Michel Marcus, Jan 24 2017

Crossrefs

Cf. A063908-A063913, A092109, A145471-A145490.

Sequence in context: A281018 A184860 A242655 * A003307 A105601 A199971

Adjacent sequences: A145486 A145487 A145488 * A145490 A145491 A145492

Keyword

nonn

Author

Artur Jasinski, Oct 11 2008

Extensions

Corrected by Artur Jasinski, Apr 01 2011

Status

approved