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Primes p such that 70 is a square mod p.
1

%I #7 Sep 08 2012 05:16:00

%S 2,3,5,7,11,17,23,31,37,53,61,73,83,97,101,127,179,181,197,199,211,

%T 227,229,257,263,269,271,277,281,283,307,311,313,317,331,349,353,373,

%U 379,401,433,439,449,461,463,467

%N Primes p such that 70 is a square mod p.

%H Vincenzo Librandi, <a href="/A038953/b038953.txt">Table of n, a(n) for n = 1..1000</a>

%t Select[Prime[Range[100]], ! JacobiSymbol[70, #] == -1 &] (* _Vincenzo Librandi_, Sep 08 2012 *)

%K nonn

%O 1,1

%A _N. J. A. Sloane_.