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 A362825 #7 May 08 2023 15:33:02 %S A362825 1,1,8,22,232,1016,12496,73648,1032032,7586272,118141696,1033672256, %T A362825 17668427008,178649596672,3313667912192,37898019913216, %U A362825 756948065453056,9640771045925888,205935949714235392,2885307792776353792,65568056040976818176 %N A362825 Number of ordered triples of involutions on [n] that pairwise commute. %C A362825 Two involutions x,y on [n] commute if x*y = y*x. %H A362825 Andrew Howroyd, <a href="/A362825/b362825.txt">Table of n, a(n) for n = 0..200</a> %F A362825 E.g.f.: exp(x + 7*x^2/2 + 7*x^4/4 + x^8/8). %o A362825 (PARI) seq(n) = {Vec(serlaplace(exp(x + 7*x^2/2 + 7*x^4/4 + x^8/8 + O(x*x^n))))} %Y A362825 Column k=3 of A362824. %Y A362825 Cf. A362819. %K A362825 nonn %O A362825 0,3 %A A362825 _Andrew Howroyd_, May 06 2023