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 A291705 #8 Feb 16 2025 08:33:51 %S A291705 1,0,0,11140,6635521,7249082465,35733685780960 %N A291705 Number of connected dominating sets in the n X n knight graph. %H A291705 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ConnectedDominatingSet.html">Connected Dominating Set</a> %H A291705 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KnightGraph.html">Knight Graph</a> %Y A291705 Cf. A287071, A290765. %K A291705 nonn,more %O A291705 1,4 %A A291705 _Eric W. Weisstein_, Aug 30 2017 %E A291705 a(6)-a(7) from _Andrew Howroyd_, Sep 04 2017