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 A289884 #6 Feb 16 2025 08:33:49 %S A289884 1,3,8,144,48180,16968996,3408422016 %N A289884 Number of maximum matchings in the n-triangular honeycomb queen graph. %H A289884 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Matching.html">Matching</a> %H A289884 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MaximumIndependentEdgeSet.html">Maximum Independent Edge Set</a> %K A289884 nonn,more %O A289884 1,2 %A A289884 _Eric W. Weisstein_, Jul 14 2017