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A221717 Non-cuban primes. 3
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified May 12 04:27 EDT 2021. Contains 343810 sequences. (Running on oeis4.)