A233314 Primes p such that p+6 and p+12 are composite.

2, 3, 43, 79, 109, 113, 149, 163, 197, 241, 283, 293, 313, 317, 349, 359, 379, 401, 439, 463, 499, 521, 523, 547, 569, 577, 599, 617, 643, 659, 673, 683, 691, 701, 709, 719, 743, 769, 773, 787, 829, 839, 859, 863, 883, 887, 911, 919, 937, 953, 967, 983, 1031

Offset

1,1

Comments

Subsequence of A140555: a(3) = 43 = A140555(5), a(1000) = 18503 = A140555(1468).

Links

Zak Seidov, Table of n, a(n) for n = 1..1000

Mathematica

Select[Prime[Range[200]], ! PrimeQ[# + 6] && ! PrimeQ[# + 12] &] (* T. D. Noe, Dec 10 2013 *)

Crossrefs

Cf. A140555.

Sequence in context: A051099 A162712 A182217 * A062581 A077520 A230061

Adjacent sequences: A233311 A233312 A233313 * A233315 A233316 A233317

Keyword

nonn

Author

Zak Seidov, Dec 07 2013

Status

approved