OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
FactorInteger[#][[1, 1]]&/@(2Prime[Range[90]]-1) (* Harvey P. Dale, Oct 08 2017 *)
PROG
(PARI) a(n) = factor(2*prime(n)-1)[1, 1]; \\ Michel Marcus, Oct 01 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
Definition edited by Michel Marcus, Oct 01 2013
STATUS
approved