OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[300]], MemberQ[{0, 1, 2, 3}, Mod[#, 13]]&]
PROG
(Magma) [p: p in PrimesUpTo(1200) | p mod 13 in [0..3]];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Aug 09 2012
STATUS
approved