A038968 Primes p such that 82 is not a square mod p.

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

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