A038931 - OEIS

A038931

Primes p such that 53 is a square mod p.

7, 11, 13, 17, 29, 37, 43, 47, 53, 59, 89, 97, 107, 113, 131, 149, 163, 197, 199, 211, 223, 227, 229, 241, 269, 271, 281, 293, 307, 311, 317, 331, 347, 367, 409, 431, 433, 439, 449, 461, 467, 487, 521, 523, 541

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Also, primes p which are squares mod 53 (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[100]], ! JacobiSymbol[53, #] == -1 &] (* Vincenzo Librandi, Sep 08 2012 *)

CROSSREFS

Sequence in context: A309671 A073704 A040108 * A141189 A191035 A373299

Adjacent sequences: A038928 A038929 A038930 * A038932 A038933 A038934

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Offset changed from 0 to 1 by Vincenzo Librandi, Sep 08 2012

STATUS

approved