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 A022978 #13 Aug 04 2025 14:20:01 %S A022978 22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,-1,-2,-3, %T A022978 -4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-17,-18,-19,-20,-21, %U A022978 -22,-23,-24,-25,-26,-27,-28,-29,-30,-31,-32,-33,-34,-35,-36,-37,-38 %N A022978 a(n) = 22-n. %H A022978 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>. %H A022978 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1). %t A022978 22 - Range[0, 100] (* _Paolo Xausa_, Jul 29 2024 *) %o A022978 (Magma) [22-n : n in [0..100]]; // _Wesley Ivan Hurt_, Aug 04 2025 %Y A022978 Cf. A022958 - A022995. %K A022978 easy,sign %O A022978 0,1 %A A022978 _N. J. A. Sloane_