A094517 Primes p such that 6p+11 is not a prime.

11, 19, 29, 53, 59, 61, 67, 71, 79, 89, 103, 109, 113, 137, 139, 149, 151, 163, 179, 191, 193, 199, 223, 229, 239, 241, 251, 263, 269, 277, 293, 307, 337, 347, 349, 359, 373, 379, 389, 409, 419, 421, 431, 439, 443, 449, 467, 479, 487, 499, 503, 509, 523, 547, 557, 569

Offset: 1

Author

N. J. A. Sloane, following a suggestion by R. K. Guy, Jun 05 2004

Keywords

• nonn

Comments

Primes of the form A059324(.)-1. - R. J. Mathar, Jan 30 2011

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Complement in primes of A089438.

Programs

Magma

[p: p in PrimesUpTo(5000)|not IsPrime(6*p+11)]; // Vincenzo Librandi, Jan 30 2011

Mathematica

Select[Prime[Range[150]],CompositeQ[6#+11]&] (* Harvey P. Dale, Aug 02 2021 *)