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 A360918 #11 Feb 16 2025 08:34:04 %S A360918 1,1,1,1,4,1,1,2,2,1,1,10,10,10,1,1,4,26,26,4,1,1,24,2,32,2,24,1,1,8, %T A360918 10,50,50,10,8,1,1,56,50,56,22,56,50,56,1,1,16,194,64,608,608,64,194, %U A360918 16,1,1,128,4,72,182,4120,182,72,4,128,1,1,32,32,80,16,208,208,16,80,32,32,1 %N A360918 Array read by antidiagonals: T(m,n) is the number of maximum induced trees in the grid graph P_m X P_n. %C A360918 A maximum induced tree is an induced tree of greatest size. %H A360918 Andrew Howroyd, <a href="/A360918/b360918.txt">Table of n, a(n) for n = 1..435</a> %H A360918 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GridGraph.html">Grid Graph</a>. %F A360918 T(m,n) = T(n,m). %e A360918 Array begins: %e A360918 =============================================== %e A360918 m\n| 1 2 3 4 5 6 7 8 9 ... %e A360918 ---+------------------------------------------- %e A360918 1 | 1 1 1 1 1 1 1 1 1 ... %e A360918 2 | 1 4 2 10 4 24 8 56 16 ... %e A360918 3 | 1 2 10 26 2 10 50 194 4 ... %e A360918 4 | 1 10 26 32 50 56 64 72 80 ... %e A360918 5 | 1 4 2 50 22 608 182 16 2 ... %e A360918 6 | 1 24 10 56 608 4120 208 1968 22716 ... %e A360918 7 | 1 8 50 64 182 208 488 560 1050 ... %e A360918 8 | 1 56 194 72 16 1968 560 65864 14340 ... %e A360918 9 | 1 16 4 80 2 22716 1050 14340 166 ... %e A360918 ... %Y A360918 Main diagonal is A360919. %Y A360918 Cf. A360202, A360847, A360913, A360916, A360920 (maximum sizes). %K A360918 nonn,tabl %O A360918 1,5 %A A360918 _Andrew Howroyd_, Feb 26 2023