OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..27
FORMULA
a(n) = 3^A219044(n) + 26. - Elmo R. Oliveira, Nov 12 2023
MATHEMATICA
Select[Table[3^n + 26, {n, 0, 500}], PrimeQ]
PROG
(Magma) [a: n in [0..200] | IsPrime(a) where a is 3^n+26];
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Jun 05 2014
STATUS
approved