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A040066 Primes p such that x^3 = 13 has no solution mod p. 2
19, 31, 37, 43, 61, 67, 73, 79, 97, 109, 127, 139, 151, 157, 181, 199, 241, 283, 307, 313, 331, 337, 349, 367, 379, 397, 433, 439, 457, 463, 487, 523, 541, 547, 571, 577, 607, 613, 631, 643, 673, 691, 727, 733 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Complement of A040065 relative to A000040. - Vincenzo Librandi, Sep 17 2012
LINKS
MATHEMATICA
ok[p_]:= Reduce[Mod[x^3 - 13, p] == 0, x, Integers] == False; Select[Prime[Range[200]], ok] (* Vincenzo Librandi, Sep 17 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(1000) | not exists{x : x in ResidueClassRing(p) | x^3 eq 13} ]; // Vincenzo Librandi, Sep 17 2012
CROSSREFS
Sequence in context: A250216 A125148 A214798 * A339465 A279192 A159043
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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Last modified May 24 12:58 EDT 2024. Contains 372773 sequences. (Running on oeis4.)