A013770 a(n) = 22^(3*n + 1).

22, 234256, 2494357888, 26559922791424, 282810057883082752, 3011361496339065143296, 32064977213018365645815808, 341427877364219557396646723584, 3635524038174209847159494312722432, 38711059958478986452554295441868455936

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..200
• Tanya Khovanova, Recursive Sequences
• Index entries for linear recurrences with constant coefficients, signature (10648).

Crossrefs

Subsequence of A009966.

Programs

Magma

[22^(3*n+1): n in [0..10]]; // Vincenzo Librandi, Jun 27 2011

PARI

a(n)=22^(3*n+1) \\ Charles R Greathouse IV, Jul 10 2016