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 A286849 #17 Feb 16 2025 08:33:45 %S A286849 1,2,2,2,4,2,4,6,6,4,4,16,12,16,4,7,20,36,36,20,7,9,52,64,256,64,52,9, %T A286849 13,80,204,400,400,204,80,13,18,176,446,2704,971,2704,446,176,18,25, %U A286849 296,1184,6400,6486,6486,6400,1184,296,25 %N A286849 Array read by antidiagonals: T(m,n) = number of minimal dominating sets in the n X m king graph. %H A286849 Andrew Howroyd, <a href="/A286849/b286849.txt">Table of n, a(n) for n = 1..153</a> %H A286849 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KingGraph.html">King Graph</a> %H A286849 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MinimalDominatingSet.html">Minimal Dominating Set</a> %e A286849 Array begins: %e A286849 =========================================================== %e A286849 m\n| 1 2 3 4 5 6 7 8 %e A286849 ---|------------------------------------------------------- %e A286849 1 | 1 2 2 4 4 7 9 13... %e A286849 2 | 2 4 6 16 20 52 80 176... %e A286849 3 | 2 6 12 36 64 204 446 1184... %e A286849 4 | 4 16 36 256 400 2704 6400 30976... %e A286849 5 | 4 20 64 400 971 6486 22177 112317... %e A286849 6 | 7 52 204 2704 6486 85405 351503 3082745... %e A286849 7 | 9 80 446 6400 22177 351503 1997448 21587536... %e A286849 8 | 13 176 1184 30976 112317 3082745 21587536 360584008... %e A286849 ... %Y A286849 Rows 1-2 are A253413, A286850. %Y A286849 Main diagonal is A286881. %Y A286849 Cf. A218663 (dominating sets), A245013 (independent), A286870 (irredundant). %Y A286849 Cf. A286847 (grid graph). %K A286849 nonn,tabl %O A286849 1,2 %A A286849 _Andrew Howroyd_, Aug 01 2017