a(n) = 3^(2^n) (or: write in base 3, read in base 9).
A011764
a(n) = 3^(2^n) (or: write in base 3, read in base 9).
Terms
- a(0) =3a(1) =9a(2) =81a(3) =6561a(4) =43046721
External references
- oeis: A011764
A011764
a(n) = 3^(2^n) (or: write in base 3, read in base 9).