OFFSET
1,2
COMMENTS
a(45) > 2*10^5. - Robert Price, Nov 29 2013
EXAMPLE
3^3 + 26 = 53 (prime), so 3 is in the sequence.
MATHEMATICA
Do[If[PrimeQ[3^n + 26], Print[n]], {n, 10000}]
PROG
(PARI) is(n)=isprime(3^n+26) \\ Charles R Greathouse IV, Feb 17 2017
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Nicolas M. Perrault, Nov 10 2012
EXTENSIONS
a(31)-a(44) from Robert Price, Nov 29 2013
STATUS
approved