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 A290785 #12 Feb 16 2025 08:33:50 %S A290785 2,16,150,5771,270411,51462132 %N A290785 Number of irredundant sets in the n X n knight graph. %H A290785 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IrredundantSet.html">Irredundant Set</a> %H A290785 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KnightGraph.html">Knight Graph</a> %Y A290785 Cf. A286882, A287071, A291099. %K A290785 nonn,more %O A290785 1,1 %A A290785 _Eric W. Weisstein_, Aug 10 2017 %E A290785 a(5)-a(6) from _Andrew Howroyd_, Aug 19 2017