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A038949 Primes p such that 67 is a square mod p. 1
3, 7, 11, 17, 29, 31, 37, 43, 67, 73, 79, 89, 139, 149, 157, 173, 179, 181, 191, 193, 239, 241, 251, 257, 269, 271, 277, 293, 311, 317, 331, 347, 349, 367, 379, 383, 389, 397, 421, 443, 449, 457, 461, 463, 487 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Also, only entries p=1 (mod 4) of the sequence are squares mod 67 (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[100]], ! JacobiSymbol[67, #] == -1 &] (* Vincenzo Librandi, Sep 08 2012 *)

CROSSREFS

Sequence in context: A194069 A088206 A052341 * A106967 A045420 A190898

Adjacent sequences:  A038946 A038947 A038948 * A038950 A038951 A038952

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 18 22:46 EDT 2021. Contains 344006 sequences. (Running on oeis4.)