A167056 Numbers k such that 12*k + 7 is prime.

0, 1, 2, 3, 5, 6, 8, 10, 11, 12, 13, 16, 17, 18, 22, 23, 25, 27, 30, 31, 36, 38, 40, 41, 43, 45, 47, 50, 51, 52, 53, 57, 60, 61, 62, 65, 67, 68, 71, 73, 75, 76, 80, 82, 86, 87, 88, 90, 93, 97, 102, 106, 107, 108, 110, 116, 118, 120, 121, 122, 123, 127, 128, 130, 131, 135, 138

Offset: 1

Author

Michael B. Porter, Oct 27 2009

Keywords

• easy
• nonn

Comments

Corresponds to odd numbers in A024899.

Examples

			2 is in the sequence since 12*2+7 = 31 is prime.
		

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Crossrefs

A110801, A167055, A167057, A024899, primes are in A068229.

Programs

Magma

[n: n in [1..150] | IsPrime(12*n+7)]; // Vincenzo Librandi, May 20 2014

Mathematica

Select[Range[0, 200], PrimeQ[12 # + 7] &] (* Vincenzo Librandi, May 20 2014 *)

PARI

isA167056(n) = isprime(12*n+7)