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 A022980 #14 Jul 29 2024 06:12:48 %S A022980 24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,-1, %T A022980 -2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-17,-18,-19,-20, %U A022980 -21,-22,-23,-24,-25,-26,-27,-28,-29,-30,-31,-32,-33,-34,-35,-36 %N A022980 a(n) = 24-n. %H A022980 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>. %H A022980 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1). %t A022980 24-Range[60] (* _Harvey P. Dale_, Apr 26 2011 *) %Y A022980 Cf. A022958 - A022995. %K A022980 sign %O A022980 0,1 %A A022980 _N. J. A. Sloane_