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 A290714 #13 Feb 16 2025 08:33:50 %S A290714 2,9,110,2116,59670,2509056,147357840,12001640704,1321710590682, %T A290714 196996776086916 %N A290714 Number of irredundant sets in the n X n bishop graph. %H A290714 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/BishopGraph.html">Bishop Graph</a> %H A290714 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IrredundantSet.html">Irredundant Set</a> %F A290714 a(n) = A290712(n) * A290713(n) for n > 1. - _Andrew Howroyd_, Aug 10 2017 %Y A290714 Cf. A290712, A290713, A291060. %K A290714 nonn,more %O A290714 1,1 %A A290714 _Eric W. Weisstein_, Aug 09 2017 %E A290714 a(5)-a(10) from _Andrew Howroyd_, Aug 19 2017