%I #7 Sep 08 2012 05:16:11
%S 2,5,7,13,19,29,37,41,43,47,59,61,71,73,109,127,131,137,151,163,179,
%T 223,227,233,251,263,271,277,283,331,337,347,359,367,389,421,433,461,
%U 467,499,521,523,541,547,557,563
%N Primes p such that 74 is a square mod p.
%H Vincenzo Librandi, <a href="/A038959/b038959.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Prime[Range[110]], ! JacobiSymbol[74, #] == -1 &] (* _Vincenzo Librandi_, Sep 08 2012 *)
%K nonn
%O 1,1
%A _N. J. A. Sloane_.