OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[5000]], Mod[#, 420] == 1 &] (* T. D. Noe, Oct 08 2012 *)
Select[420*Range[100]+1, PrimeQ] (* Harvey P. Dale, Jun 06 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Joshua S.M. Weiner, Oct 07 2012
STATUS
approved