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A038966 Primes p such that 79 is not a square mod p. 1
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 24 09:10 EDT 2021. Contains 347630 sequences. (Running on oeis4.)