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A038920

Primes p such that 41 is not a square mod p.

3, 7, 11, 13, 17, 19, 29, 47, 53, 67, 71, 79, 89, 97, 101, 109, 137, 149, 151, 157, 167, 179, 181, 191, 193, 199, 211, 227, 229, 233, 239, 257, 263, 281, 293, 311, 313, 317, 331, 347, 383, 397, 421, 439, 457, 463

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OFFSET

1,1

COMMENTS

Also, primes p that are not squares mod 41 (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[41, #] == -1 &] (* Vincenzo Librandi, Sep 09 2012 *)

CROSSREFS

Sequence in context: A310193 A226014 A023236 * A361822 A091633 A166559

Adjacent sequences: A038917 A038918 A038919 * A038921 A038922 A038923

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

Offset changed from 0 to 1 by Vincenzo Librandi, Sep 09 2012

STATUS

approved

URL: https://oeis.org/A038920

⇱ A038920 - OEIS