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A038988 Primes p such that 97 is not a square mod p. 1
5, 7, 13, 17, 19, 23, 29, 37, 41, 59, 67, 71, 83, 107, 127, 131, 137, 139, 149, 157, 173, 179, 181, 199, 211, 223, 233, 239, 251, 257, 263, 271, 277, 281, 311, 317, 331, 337, 347, 349, 359, 367, 373, 383, 401, 409 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Also, primes p that are not squares mod 97 (from the quadratic reciprocity law). - Lekraj Beedassy, Jul 13 2004

LINKS

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

MATHEMATICA

Select[Prime[Range[120]], JacobiSymbol[97, #]==-1 &] (* Vincenzo Librandi, Sep 10 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(409) | not IsSquare(R! 97) where R:= ResidueClassRing(p) ]; // Vincenzo Librandi, Sep 10 2012

CROSSREFS

Sequence in context: A216737 A078867 A038911 * A033560 A092551 A177017

Adjacent sequences:  A038985 A038986 A038987 * A038989 A038990 A038991

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Offset changed from 0 to 1 by Vincenzo Librandi, Sep 10 2012

STATUS

approved

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Last modified April 1 14:52 EDT 2020. Contains 333163 sequences. (Running on oeis4.)