OFFSET
1,2
COMMENTS
All terms are equal to 1/3 of the multiples of 3 in A059608.
MATHEMATICA
Select[Range[4000], PrimeQ[8^# - 5] &]
PROG
(PARI) is(n)=ispseudoprime(8^n-5) \\ Charles R Greathouse IV, Jun 06 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Oct 02 2012
STATUS
approved