A023254 Primes that remain prime through 2 iterations of the function f(x) = 5x + 6.

7, 11, 29, 41, 53, 79, 83, 107, 113, 137, 139, 149, 163, 181, 193, 233, 239, 359, 379, 401, 449, 487, 503, 547, 601, 643, 653, 809, 839, 877, 883, 911, 1009, 1087, 1093, 1103, 1117, 1171, 1259, 1289, 1303, 1367, 1373, 1481, 1511, 1579, 1637, 1747, 1787, 1801

Offset

1,1

Comments

Primes p such that 5*p+6 and 25*p+36 are also primes. - Vincenzo Librandi, Aug 04 2010

Links

John Cerkan, Table of n, a(n) for n = 1..10000

Prog

(Magma) [n: n in [0..100000] | IsPrime(n) and IsPrime(5*n+6) and IsPrime(25*n+36)] // Vincenzo Librandi, Aug 04 2010

Crossrefs

Subsequence of A081759.

Sequence in context: A136338 A193867 A110572 * A129807 A045461 A153867

Adjacent sequences: A023251 A023252 A023253 * A023255 A023256 A023257

Keyword

nonn

Author

David W. Wilson

Status

approved