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 A297490 #11 Feb 16 2025 08:33:52 %S A297490 1,2,30,568,69136,14222976,27406992000,90368686135296, %T A297490 3472530332565934080,231339455371699944947712, %U A297490 217930756388573091682145009664 %N A297490 Number of maximal matchings in the n X n white bishop graph. %H A297490 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Matching.html">Matching</a> %H A297490 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MaximalIndependentEdgeSet.html">Maximal Independent Edge Set</a> %H A297490 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/WhiteBishopGraph.html">White Bishop Graph</a> %Y A297490 Cf. A286423, A297471, A297472. %K A297490 nonn,more %O A297490 2,2 %A A297490 _Eric W. Weisstein_, Dec 30 2017 %E A297490 a(7)-a(12) from _Andrew Howroyd_, Dec 30 2017 %E A297490 Offset corrected by _Pontus von Brömssen_, Nov 22 2020