A038900 Primes p such that 26 is not a square mod p.

3, 7, 29, 31, 41, 43, 47, 53, 61, 71, 73, 89, 97, 101, 107, 131, 137, 139, 151, 157, 167, 173, 179, 181, 193, 211, 223, 239, 241, 251, 269, 271, 277, 281, 283, 347, 353, 359, 373, 383, 389, 401, 409, 419, 431, 443

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn

Links

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

Programs

Mathematica

Select[Prime@Range[120], JacobiSymbol[26, #] == -1 &] (* Vincenzo Librandi, Sep 08 2012 *)

Extensions

Offset changed from 0 to 1 by Vincenzo Librandi, Sep 08 2012