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 A292196 #18 Feb 16 2025 08:33:51 %S A292196 1,1,84,239169,84974863680 %N A292196 Number of maximal matchings in the n X n rook complement graph. %H A292196 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Matching.html">Matching</a> %H A292196 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MaximalIndependentEdgeSet.html">Maximal Independent Edge Set</a> %H A292196 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/RookComplementGraph.html">Rook Complement Graph</a> %K A292196 nonn,hard,more %O A292196 1,3 %A A292196 _Eric W. Weisstein_, Sep 11 2017 %E A292196 a(5) from _Pontus von Brömssen_, Dec 29 2022