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 A304554 #9 Feb 16 2025 08:33:54 %S A304554 0,0,0,0,2464,405185,55169095,11077807074,4422260279456, %T A304554 3897809824077016,7363846127466734748 %N A304554 Number of total dominating sets in the n-triangular honeycomb obtuse knight graph. %H A304554 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TotalDominatingSet.html">Total Dominating Set</a> %Y A304554 Cf. A304552, A304559, A304565. %K A304554 nonn,more %O A304554 1,5 %A A304554 _Eric W. Weisstein_, May 14 2018 %E A304554 a(8)-a(11) from _Andrew Howroyd_, May 19 2018