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 A303143 #16 Jun 25 2025 19:16:19 %S A303143 0,1,9,784,3686400 %N A303143 Number of minimum total dominating sets in the n-transposition graph. %C A303143 a(n) matches all 4 terms of the finite sequence A168257(n). %C A303143 a(n) matches A060545(n-1)^2 for n=2 to 4. %C A303143 All terms are squares (see comment in A303146). - _Andrew Howroyd_, Jun 11 2025 %H A303143 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MinimumTotalDominatingSet.html">Minimum Total Dominating Set</a>. %H A303143 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TranspositionGraph.html">Transposition Graph</a>. %Y A303143 Cf. A303146, A303150 (set size), A321618. %K A303143 nonn,more %O A303143 1,3 %A A303143 _Eric W. Weisstein_, Apr 19 2018 %E A303143 a(5) from _Christian Sievers_, Jun 25 2025