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 A290060 #8 Feb 16 2025 08:33:49 %S A290060 1,2,10,513,4281761,2220758035702016 %N A290060 Number of matchings in the n-halved cube graph. %H A290060 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HalvedCubeGraph.html">Halved Cube Graph</a> %H A290060 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IndependentEdgeSet.html">Independent Edge Set</a> %H A290060 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Matching.html">Matching</a> %K A290060 nonn,more %O A290060 1,2 %A A290060 _Eric W. Weisstein_, Jul 19 2017 %E A290060 a(6) from _Andrew Howroyd_, Aug 15 2017