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 A303118 #19 May 22 2025 22:34:05 %S A303118 0,1,1,2,4,2,1,4,4,1,2,16,6,16,2,4,16,49,49,16,4,3,49,66,169,66,49,3, %T A303118 4,81,225,576,576,225,81,4,8,169,640,2601,2622,2601,640,169,8,9,324, %U A303118 1681,10000,14400,14400,10000,1681,324,9,10,625,4641,38416,81055,137641,81055,38416,4641,625,10 %N A303118 Array read by antidiagonals: T(m,n) = number of minimal total dominating sets in the grid graph P_m X P_n. %H A303118 Andrew Howroyd, <a href="/A303118/b303118.txt">Table of n, a(n) for n = 1..435</a> (first 29 antidiagonals) %H A303118 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GridGraph.html">Grid Graph</a>. %H A303118 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MinimalTotalDominatingSet.html">Minimal Total Dominating Set</a>. %e A303118 Table begins: %e A303118 ============================================================= %e A303118 m\n| 1 2 3 4 5 6 7 8 %e A303118 ---+--------------------------------------------------------- %e A303118 1 | 0 1 2 1 2 4 3 4 ... %e A303118 2 | 1 4 4 16 16 49 81 169 ... %e A303118 3 | 2 4 6 49 66 225 640 1681 ... %e A303118 4 | 1 16 49 169 576 2601 10000 38416 ... %e A303118 5 | 2 16 66 576 2622 14400 81055 440896 ... %e A303118 6 | 4 49 225 2601 14400 137641 1081600 8185321 ... %e A303118 7 | 3 81 640 10000 81055 1081600 11458758 125955729 ... %e A303118 8 | 4 169 1681 38416 440896 8185321 125955729 1944369025 ... %e A303118 ... %Y A303118 Rows 1..2 are A302655, A303072. %Y A303118 Main diagonal is A303161. %Y A303118 Cf. A300358, A303111, A303293. %K A303118 nonn,tabl %O A303118 1,4 %A A303118 _Andrew Howroyd_, Apr 18 2018