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 A193136 #13 Feb 16 2025 08:33:15 %S A193136 3,135,20503125,119709242282867431640625, %T A193136 39709946214287663263304759568121660162631769708241336047649383544921875 %N A193136 Numbers of spanning trees of the Hanoi graphs. %H A193136 Alois P. Heinz, <a href="/A193136/b193136.txt">Table of n, a(n) for n = 1..6</a> %H A193136 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HanoiGraph.html">Hanoi Graph</a> %H A193136 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SpanningTree.html">Spanning Tree</a> %Y A193136 Cf. A288839 (chromatic polynomials of the n-Hanoi graph). %Y A193136 Cf. A193233 (chromatic polynomial with highest coefficients first). %Y A193136 Cf. A137889 (directed Hamiltonian paths in the n-Hanoi graph). %Y A193136 Cf. A288490 (independent vertex sets in the n-Hanoi graph). %Y A193136 Cf. A286017 (matchings in the n-Hanoi graph). %Y A193136 Cf. A288796 (undirected paths in the n-Hanoi graph). %K A193136 nonn %O A193136 1,1 %A A193136 _Eric W. Weisstein_, Jul 16 2011