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A040178 Primes p such that x^5 = 10 has no solution mod p. 2
31, 41, 61, 71, 131, 151, 181, 191, 211, 241, 271, 311, 331, 401, 421, 431, 461, 491, 541, 571, 601, 631, 661, 691, 701, 751, 761, 811, 821, 881, 911, 941, 971, 991, 1021, 1051, 1091, 1151, 1171, 1181, 1201 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A040177 relative to A000040. - Vincenzo Librandi, Sep 18 2012

LINKS

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

MATHEMATICA

ok[p_]:= Reduce[Mod[x^5 - 10, p] == 0, x, Integers] == False; Select[Prime[Range[300]], ok] (* Vincenzo Librandi, Sep 18 2012  *)

PROG

(MAGMA) [p: p in PrimesUpTo(1500) | not exists{x : x in ResidueClassRing(p) | x^5 eq 10} ]; // Vincenzo Librandi, Sep 18 2012

CROSSREFS

Sequence in context: A040989 A040969 A088555 * A089719 A109550 A040991

Adjacent sequences:  A040175 A040176 A040177 * A040179 A040180 A040181

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 19 03:08 EDT 2019. Contains 328211 sequences. (Running on oeis4.)