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 A288032 #9 Feb 16 2025 08:33:47 %S A288032 0,12,322,14248,1530196,436619868,343715004510,766012555199052, %T A288032 4914763477312679808,91781780911712980966236, %U A288032 5028368533802124263609489682,813124448051069045700905179168520 %N A288032 Number of (undirected) paths in the n X n grid graph. %C A288032 Paths of length zero are not counted here. - _Andrew Howroyd_, Jun 10 2017 %H A288032 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GraphPath.html">Graph Path</a> %H A288032 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GridGraph.html">Grid Graph</a> %Y A288032 Main diagonal of A288518. %Y A288032 Cf. A236753, A288033, A288148, A007764, A121785, A120443. %K A288032 nonn,more %O A288032 1,2 %A A288032 _Eric W. Weisstein_, Jun 04 2017 %E A288032 a(6)-a(12) from _Andrew Howroyd_, Jun 10 2017