A221717 - OEIS

A221717

Non-cuban primes.

2, 3, 5, 11, 13, 17, 23, 29, 31, 41, 43, 47, 53, 59, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 277, 281, 283, 293

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OFFSET

1,1

COMMENTS

Primes not in A002407.

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

MATHEMATICA

nn = 10; c = Select[Table[3 x^2 + 3 x + 1, {x, nn}], PrimeQ[#] &]; Complement[Prime[Range[PrimePi[c[[-1]]]]], c] (* T. D. Noe, Jan 30 2013 *)

CROSSREFS

Cf. A002407, A007645, A003627.

Sequence in context: A225184 A038947 A095315 * A140558 A040044 A253110

Adjacent sequences: A221714 A221715 A221716 * A221718 A221719 A221720

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 29 2013

STATUS

approved