OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
a(4) = 56 = 5+11+17+23.
MATHEMATICA
Accumulate[Select[Prime[Range[100]], Mod[#, 6]==5&]] (* Harvey P. Dale, May 28 2013 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Den Roussel (DenRoussel(AT)webtv.net)
STATUS
approved