%I #13 Sep 08 2022 08:44:48
%S 1,8,73,702,6497,58924,531225,4782626,43046209,387419760,3486783401,
%T 31381058278,282429534753,2541865826132,22876792452217,
%U 205891132091274,1853020188847745,16677181699661656,150094635296993289
%N a(n) = 9^n - n^3.
%H Vincenzo Librandi, <a href="/A024104/b024104.txt">Table of n, a(n) for n = 0..400</a>
%F G.f.: (10*x^4 + 31*x^3 + 11*x^2 - 5*x + 1)/((1-9*x)*(1-x)^4). - _M. F. Hasler_, Jun 14 2008
%o (Magma) [9^n-n^3: n in [0..25]]; // _Vincenzo Librandi_, Jul 06 2011
%o (PARI) a(n) = 9^n-n^3; \\ _Altug Alkan_, Oct 08 2018
%K nonn,easy
%O 0,2
%A _N. J. A. Sloane_
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