OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
ok [p_]:=Reduce[Mod[x^5 - 3, p]== 0, x, Integers]=!= False; Select[Prime[Range[180]], ok] (* Vincenzo Librandi, Sep 12 2012 *)
PROG
(Magma) [ p: p in PrimesUpTo(400) | exists(t){x : x in ResidueClassRing(p) | x^5 eq 3} ]; // Klaus Brockhaus, Jun 03 2009
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
More terms from Klaus Brockhaus, Jun 03 2009
STATUS
approved