OFFSET
1,1
COMMENTS
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
ok [p_ ]:=Reduce[Mod[x^5 - 13, 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 13}]; // Vincenzo Librandi, Sep 12 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved