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A038968 Primes p such that 82 is not a square mod p. 1
5, 7, 17, 37, 43, 47, 59, 61, 71, 79, 83, 89, 97, 107, 131, 137, 139, 151, 163, 167, 173, 191, 193, 197, 199, 233, 239, 251, 257, 263, 269, 277, 281, 283, 307, 311, 313, 349, 373, 379, 383, 389, 419, 439, 443, 457 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Prime@Range[120], JacobiSymbol[82, #] == - 1 &] (* Vincenzo Librandi, Sep 09 2012 *)

PROG

(MAGMA) [ p: p in PrimesUpTo(457) | not IsSquare(R! 82) where R:= ResidueClassRing(p) ]; // Vincenzo Librandi, Sep 10 2012

CROSSREFS

Sequence in context: A166977 A272717 A018538 * A243400 A318568 A239414

Adjacent sequences:  A038965 A038966 A038967 * A038969 A038970 A038971

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

EXTENSIONS

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

STATUS

approved

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Last modified June 27 19:31 EDT 2022. Contains 354898 sequences. (Running on oeis4.)