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A040121 Primes p such that x^4 = 10 has no solution mod p. 2
7, 11, 13, 17, 19, 23, 29, 47, 59, 61, 73, 89, 97, 101, 103, 109, 113, 127, 131, 137, 139, 149, 157, 167, 179, 181, 193, 197, 211, 223, 229, 233, 251, 257, 263, 269, 281, 293, 313, 331, 337, 349, 353, 367, 373 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A040119 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 - 10, 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 10} ]; // Vincenzo Librandi, Sep 17 2012

CROSSREFS

Sequence in context: A067831 A086998 A028416 * A156114 A304690 A091554

Adjacent sequences:  A040118 A040119 A040120 * A040122 A040123 A040124

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified April 16 03:37 EDT 2021. Contains 343030 sequences. (Running on oeis4.)