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A059351 Primes p such that x^39 = 2 has no solution mod p. 1
7, 13, 19, 37, 53, 61, 67, 73, 79, 97, 103, 131, 139, 151, 157, 163, 181, 193, 199, 211, 241, 271, 313, 331, 337, 349, 367, 373, 379, 409, 421, 443, 463, 487, 521, 523, 541, 547, 571, 577, 599, 607, 613, 619, 631, 661, 673, 677, 709, 751, 757, 769, 787, 823 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Complement of A049571 relative to A000040.

LINKS

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

MATHEMATICA

ok[p_] := Reduce[Mod[x^39 - 2, p] == 0, x, Integers] == False; Select[Prime[Range[150]], ok ] (* Vincenzo Librandi, Sep 20 2012  *)

PROG

(MAGMA) [p: p in PrimesUpTo(850) | forall{x: x in ResidueClassRing(p) | x^39 ne 2 }]; // Vincenzo Librandi, Sep 20 2012

CROSSREFS

Cf. A000040, A049571.

Sequence in context: A078863 A263091 A320533 * A320532 A059262 A059640

Adjacent sequences:  A059348 A059349 A059350 * A059352 A059353 A059354

KEYWORD

nonn,easy

AUTHOR

Klaus Brockhaus, Jan 27 2001

STATUS

approved

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Last modified July 24 23:25 EDT 2021. Contains 346273 sequences. (Running on oeis4.)