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 A040979 Primes p such that x^5 = 17 has no solution mod p. 2
 11, 31, 41, 61, 71, 131, 151, 191, 211, 241, 251, 271, 281, 311, 331, 401, 421, 431, 461, 521, 541, 571, 631, 641, 661, 691, 751, 761, 821, 881, 911, 941, 971, 1021, 1051, 1091, 1151, 1171, 1181, 1201, 1291, 1301, 1381, 1451, 1471 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Complement of A040978 relative to A000040. - Vincenzo Librandi, Sep 19 2012 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA ok[p_]:= Reduce[Mod[x^5 - 17, p] == 0, x, Integers] == False; Select[Prime[Range[300]], ok] (* Vincenzo Librandi, Sep 19 2012 *) PROG (Magma) [p: p in PrimesUpTo(1500) | not exists{x : x in ResidueClassRing(p) | x^5 eq 17} ]; // Vincenzo Librandi, Sep 19 2012 CROSSREFS Sequence in context: A040981 A181603 A040983 * A181182 A089347 A287312 Adjacent sequences: A040976 A040977 A040978 * A040980 A040981 A040982 KEYWORD nonn,easy AUTHOR N. J. A. Sloane. STATUS approved

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Last modified December 8 08:02 EST 2023. Contains 367662 sequences. (Running on oeis4.)