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 A024118 #10 Sep 08 2022 08:44:48 %S A024118 1,9,84,919,9744,99375,998704,9997599,99995904,999993439,9999990000, %T A024118 99999985359,999999979264,9999999971439,99999999961584, %U A024118 999999999949375,9999999999934464,99999999999916479,999999999999895024 %N A024118 a(n) = 10^n - n^4. %H A024118 Vincenzo Librandi, <a href="/A024118/b024118.txt">Table of n, a(n) for n = 0..300</a> %o A024118 (Magma) [10^n-n^4: n in [0..20]]; // _Vincenzo Librandi_, Jun 30 2011 %K A024118 nonn,easy %O A024118 0,2 %A A024118 _N. J. A. Sloane_