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 A024126 #21 Jul 08 2024 21:42:50
%S A024126 1,9,-3996,-530441,-16767216,-244040625,-2175782336,-13831287201,
%T A024126 -68619476736,-281429536481,-990000000000,-3038428376721,
%U A024126 -7916100448256,-13298085122481,43306087624704,870253662109375,9718525023289344
%N A024126 a(n) = 10^n - n^12.
%H A024126 Vincenzo Librandi, <a href="/A024126/b024126.txt">Table of n, a(n) for n = 0..300</a>
%H A024126 <a href="/index/Rec#order_14">Index entries for linear recurrences with constant coefficients</a>, signature (23,-208,1066,-3575,8437,-14586,18876,-18447,13585,-7436,2938,-793,131,-10).
%t A024126 Table[10^n-n^12,{n,0,20}] (* _Harvey P. Dale_, Jul 18 2011 *)
%o A024126 (Magma) [10^n-n^12: n in [0..20]]; // _Vincenzo Librandi_, Jul 01 2011
%o A024126 (PARI) a(n)=10^n-n^12 \\ _Charles R Greathouse IV_, Jul 01 2011
%K A024126 sign,easy
%O A024126 0,2
%A A024126 _N. J. A. Sloane_