A165666 Primes p such that (p^2-2)/7 is not prime.

2, 3, 5, 7, 13, 19, 23, 29, 37, 41, 43, 47, 59, 61, 71, 79, 83, 89, 97, 101, 103, 107, 113, 127, 131, 137, 139, 149, 157, 163, 167, 173, 179, 181, 191, 193, 197, 211, 223, 227, 229, 233, 239, 251, 257, 263, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Formula

A000040 \ A165667.

Mathematica

Select[Prime[Range[100]], !PrimeQ[(#^2-2)/7]&] (* Harvey P. Dale, Jun 13 2011 *)

Crossrefs

Cf. A165667, A165668.

Sequence in context: A101044 A077321 A216437 * A154579 A233134 A082885

Adjacent sequences: A165663 A165664 A165665 * A165667 A165668 A165669

Keyword

nonn,easy

Author

Vincenzo Librandi, Sep 24 2009

Extensions

Entries checked by R. J. Mathar and Charles R Greathouse IV, Oct 12 2009

Status

approved