OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[600]], MemberQ[{1, 2, 3}, Mod[#, 19]]&]
PROG
(Magma) [p: p in PrimesUpTo(2500) | p mod 19 in [1..3]];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Aug 04 2012
STATUS
approved