OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[600]], MemberQ[{2, 3, 5, 7}, Mod[#, 19]]&]
PROG
(Magma) [ p: p in PrimesUpTo(2000) | p mod 19 in {2, 3, 5, 7} ];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Aug 05 2012
STATUS
approved