This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A024104 #13 Sep 08 2022 08:44:48 %S A024104 1,8,73,702,6497,58924,531225,4782626,43046209,387419760,3486783401, %T A024104 31381058278,282429534753,2541865826132,22876792452217, %U A024104 205891132091274,1853020188847745,16677181699661656,150094635296993289 %N A024104 a(n) = 9^n - n^3. %H A024104 Vincenzo Librandi, <a href="/A024104/b024104.txt">Table of n, a(n) for n = 0..400</a> %F A024104 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 A024104 (Magma) [9^n-n^3: n in [0..25]]; // _Vincenzo Librandi_, Jul 06 2011 %o A024104 (PARI) a(n) = 9^n-n^3; \\ _Altug Alkan_, Oct 08 2018 %K A024104 nonn,easy %O A024104 0,2 %A A024104 _N. J. A. Sloane_