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A040108 Primes p such that x^4 = 6 has no solution mod p. 1
7, 11, 13, 17, 29, 31, 37, 41, 53, 59, 61, 73, 79, 83, 89, 101, 103, 107, 109, 113, 127, 131, 137, 151, 157, 179, 181, 193, 197, 199, 223, 227, 229, 233, 251, 257, 269, 271, 277, 281, 293, 313, 317, 337, 347, 349 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A040107 relative to A000040. - Vincenzo Librandi, Sep 17 2012

LINKS

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

MATHEMATICA

ok[p_]:= Reduce[Mod[x^4 - 6, p] == 0, x, Integers] == False; Select[Prime[Range[100]], ok] (* Vincenzo Librandi, Sep 17 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(500) | not exists{x : x in ResidueClassRing(p) | x^4 eq 6} ]; // Vincenzo Librandi, Sep 17 2012

CROSSREFS

Sequence in context: A279190 A309671 A073704 * A038931 A141189 A191035

Adjacent sequences:  A040105 A040106 A040107 * A040109 A040110 A040111

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 12 09:29 EST 2019. Contains 329054 sequences. (Running on oeis4.)