OFFSET
1,1
COMMENTS
a(12) has 1191 digits. - Vincenzo Librandi, Jan 03 2014
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..11
MATHEMATICA
Select[Table[(8 10^n + 7)/3, {n, 0, 300}], PrimeQ] (* Vincenzo Librandi, Jan 03 2014 *)
PROG
(Magma) [a: n in [0..250] | IsPrime(a) where a is (8*10^n+7)div(3)]
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Dec 11 2010
STATUS
approved