A106091 Primes p such that 7*p + 12 and 12*p + 7 are primes.

5, 11, 13, 17, 23, 31, 43, 53, 61, 71, 73, 97, 107, 131, 167, 173, 181, 211, 227, 277, 307, 337, 383, 463, 503, 557, 601, 643, 701, 727, 811, 827, 877, 887, 907, 911, 937, 941, 997, 1013, 1031, 1051, 1091, 1097, 1193, 1201, 1223, 1231, 1277, 1303, 1361

Offset

1,1

Links

Michael De Vlieger, Table of n, a(n) for n = 1..10000

Mathematica

Select[Prime[Range[220]], PrimeQ[12#+7]&&PrimeQ[7#+12]&]

Prog

(Magma) [p: p in PrimesUpTo(5000)|IsPrime(7*p+12) and IsPrime(12*p+7)] // Vincenzo Librandi, Jan 30 2011

Crossrefs

Sequence in context: A307390 A104110 A038936 * A246374 A040113 A003632

Adjacent sequences: A106088 A106089 A106090 * A106092 A106093 A106094

Keyword

nonn

Author

Zak Seidov, May 07 2005

Status

approved