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 A024058 #9 Sep 08 2022 08:44:48 %S A024058 1,4,-487,-19558,-261519,-1950000,-10062071,-40275482,-133827103, %T A024058 -385467364,-990234375,-2309119566,-4915639727,-9383796248, %U A024058 -14557531159,-7925781250,83868413889,644351576628,3616337975257,18750798630346 %N A024058 a(n) = 5^n - n^9. %H A024058 Vincenzo Librandi, <a href="/A024058/b024058.txt">Table of n, a(n) for n = 0..500</a> %o A024058 (Magma) [5^n-n^9: n in [0..30]]; // _Vincenzo Librandi_, Jul 03 2011 %K A024058 sign,easy %O A024058 0,2 %A A024058 _N. J. A. Sloane_