A135427 a(n) = 8^n * 9^(n^2).

1, 72, 419904, 198359290368, 7589970693537140736, 23524081260686625628823519232, 5905684770308534937017423724484399202304, 120091666484242114100641836801136909254418910442160128

Offset: 0

Author

Philippe Deléham, Dec 12 2007

Keywords

• nonn

Comments

Hankel transform of A132869.

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..30

Crossrefs

Cf. A001018, A060761, A132869.

Programs

Magma

[8^n*9^(n^2): n in [0..10]]; // Vincenzo Librandi, May 26 2011

Mathematica

Table[8^n * 9^(n^2), {n,0,15}] (* G. C. Greubel, Oct 14 2016 *)

Formula

a(n) = 8^n*9^(n^2) = A001018(n)*A060761(n).