A023226 Primes p such that 7*p + 8 is also prime.

3, 5, 17, 29, 47, 53, 59, 89, 107, 137, 149, 227, 347, 359, 383, 389, 443, 479, 503, 509, 557, 593, 599, 617, 659, 683, 743, 773, 839, 857, 887, 947, 953, 1049, 1097, 1187, 1217, 1259, 1307, 1319, 1373, 1409, 1433, 1493, 1499, 1607, 1613, 1637, 1667, 1697, 1709

Offset

1,1

Links

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

Mathematica

Select[Prime[Range[900]], PrimeQ[7 # + 8] &] (* Vincenzo Librandi, May 21 2014 *)

Prog

(Magma) [n: n in PrimesUpTo(2000) | IsPrime(7*n+8)]; // Vincenzo Librandi, Nov 20 2010

Crossrefs

Sequence in context: A283806 A163586 A074931 * A113169 A350856 A174913

Adjacent sequences: A023223 A023224 A023225 * A023227 A023228 A023229

Keyword

nonn,easy

Author

David W. Wilson

Status

approved