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A040180 Primes p such that x^5 = 11 has no solution mod p. 2
31, 41, 71, 101, 131, 151, 181, 211, 251, 271, 281, 331, 401, 421, 431, 461, 491, 521, 571, 601, 631, 641, 701, 761, 811, 821, 881, 941, 971, 991, 1021, 1031, 1051, 1061, 1091, 1151, 1171, 1201, 1321, 1361 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A040179 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 - 11, 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 11} ]; // Vincenzo Librandi, Sep 18 2012

CROSSREFS

Sequence in context: A176371 A284531 A040987 * A158754 A140458 A101520

Adjacent sequences:  A040177 A040178 A040179 * A040181 A040182 A040183

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 25 13:50 EDT 2019. Contains 326324 sequences. (Running on oeis4.)