OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..20
MATHEMATICA
Select[Union[Flatten[#+{8, -8}&/@(9^Range[100])]], PrimeQ] (* Harvey P. Dale, Oct 24 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reikku Kulon, Sep 15 2008
EXTENSIONS
One additional term from Harvey P. Dale, Oct 24 2012
STATUS
approved