A038940 Primes p such that 59 is not a square mod p.

2, 3, 7, 13, 19, 37, 61, 71, 73, 79, 89, 97, 101, 107, 109, 113, 127, 139, 149, 157, 163, 167, 173, 199, 223, 229, 233, 239, 251, 263, 269, 271, 307, 311, 313, 331, 337, 349, 353, 359, 379, 383, 397, 401, 409, 421

Offset

1,1

Comments

Also, only entries p=1 (mod 4) of the sequence are not squares mod 59 (from the quadratic reciprocity law). - Lekraj Beedassy, Jul 21 2004

Links

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

Mathematica

Select[Prime@Range[120], JacobiSymbol[59, #] == - 1 &] (* Vincenzo Librandi, Sep 09 2012 *)

Prog

(PARI) select(n->!issquare(Mod(59, n)), primes(100)) \\ Charles R Greathouse IV, Sep 09 2012

Crossrefs

Sequence in context: A342529 A172238 A319496 * A019383 A249749 A171817

Adjacent sequences: A038937 A038938 A038939 * A038941 A038942 A038943

Keyword

nonn

Author

N. J. A. Sloane.

Extensions

Offset changed from 0 to 1 by Vincenzo Librandi, Sep 09 2012

Status

approved