A038966 Primes p such that 79 is not a square mod p.

11, 17, 19, 23, 29, 31, 37, 41, 53, 61, 67, 83, 109, 113, 131, 137, 149, 151, 157, 163, 167, 173, 179, 193, 197, 223, 229, 233, 239, 263, 283, 293, 347, 349, 353, 367, 373, 383, 401, 409, 431, 439, 449, 461, 467

Offset

1,1

Comments

Also, only entries p=1 (mod 4) of the sequence are not squares mod 79 (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[79, #] == - 1 &] (* Vincenzo Librandi, Sep 09 2012 *)

Prog

(Magma) [ p: p in PrimesUpTo(467) | not IsSquare(R! 79) where R:= ResidueClassRing(p) ]; // Vincenzo Librandi, Sep 10 2012

Crossrefs

Sequence in context: A157996 A050713 A217063 * A050778 A316100 A049593

Adjacent sequences: A038963 A038964 A038965 * A038967 A038968 A038969

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved