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A040974 Primes p such that x^5 = 15 has a solution mod p. 2
2, 3, 5, 7, 13, 17, 19, 23, 29, 37, 43, 47, 53, 59, 67, 73, 79, 83, 89, 97, 103, 107, 109, 113, 127, 137, 139, 149, 157, 163, 167, 173, 179, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 257, 263, 269, 277, 283 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A040975 relative to A000040. - Bruno Berselli, Sep 13 2012

LINKS

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

MATHEMATICA

ok [p_ ]:=Reduce[Mod[x^5 - 15, p ]== 0, x, Integers ]=!= False; Select[Prime[Range[150]], ok] (* Vincenzo Librandi, Sep 12 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(400) | exists(t){x : x in ResidueClassRing(p) | x^5 eq 15}]; // Vincenzo Librandi, Sep 12 2012

CROSSREFS

Cf. A000040, A040975.

Sequence in context: A040980 A040159 A040171 * A049557 A042991 A162338

Adjacent sequences:  A040971 A040972 A040973 * A040975 A040976 A040977

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified September 18 23:17 EDT 2020. Contains 337175 sequences. (Running on oeis4.)