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 A332390 #14 May 22 2025 22:34:02 %S A332390 0,1,1,2,6,2,1,10,10,1,2,15,20,15,2,4,52,52,52,52,4,3,105,179,141,179, %T A332390 105,3,4,175,418,801,801,418,175,4,8,481,1167,2950,7770,2950,1167,481, %U A332390 8,9,1028,3498,9792,34790,34790,9792,3498,1028,9,10,2000,9074,47527,184318,204372,184318,47527,9074,2000,10 %N A332390 Array read by antidiagonals: T(m,n) is the number of minimal total dominating sets in the m X n king graph. %H A332390 Andrew Howroyd, <a href="/A332390/b332390.txt">Table of n, a(n) for n = 1..120</a> %H A332390 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/KingGraph.html">King Graph</a>. %H A332390 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MinimalTotalDominatingSet.html">Minimal Total Dominating Set</a>. %F A332390 T(n,m) = T(m,n). %e A332390 Array begins: %e A332390 ================================================================ %e A332390 m\n | 1 2 3 4 5 6 7 8 %e A332390 ----+----------------------------------------------------------- %e A332390 1 | 0 1 2 1 2 4 3 4 ... %e A332390 2 | 1 6 10 15 52 105 175 481 ... %e A332390 3 | 2 10 20 52 179 418 1167 3498 ... %e A332390 4 | 1 15 52 141 801 2950 9792 47527 ... %e A332390 5 | 2 52 179 801 7770 34790 184318 1305358 ... %e A332390 6 | 4 105 418 2950 34790 204372 1593094 14720683 ... %e A332390 7 | 3 175 1167 9792 184318 1593094 16260853 231301551 ... %e A332390 8 | 4 481 3498 47527 1305358 14720683 231301551 4570906041 ... %e A332390 ... %Y A332390 Rows 1..4 are A302655, A332392, A332393, A332394. %Y A332390 Main diagonal is A332391. %Y A332390 Cf. A286849, A303114, A303118, A303335, A303378. %K A332390 nonn,tabl %O A332390 1,4 %A A332390 _Andrew Howroyd_, Feb 10 2020