A135427 - OEIS

%I #13 Sep 08 2022 08:45:32

%S 1,72,419904,198359290368,7589970693537140736,

%T 23524081260686625628823519232,

%U 5905684770308534937017423724484399202304,120091666484242114100641836801136909254418910442160128

%N a(n) = 8^n * 9^(n^2).

%C Hankel transform of A132869.

%H Vincenzo Librandi, <a href="/A135427/b135427.txt">Table of n, a(n) for n = 0..30</a>

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

%t Table[8^n * 9^(n^2), {n,0,15}] (* _G. C. Greubel_, Oct 14 2016 *)

%o (Magma) [8^n*9^(n^2): n in [0..10]]; // _Vincenzo Librandi_, May 26 2011

%Y Cf. A001018, A060761, A132869.

%K nonn

%O 0,2

%A _Philippe Deléham_, Dec 12 2007