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 A350913 #10 Feb 06 2022 22:35:17 %S A350913 1,1,2,3,10,17,244,2077,181018,12150445,6986854715,2456586421099, %T A350913 12983287104044905,40482495806423235417,1213455558602787270259889, %U A350913 29044259315697996254338202296,6058969047090883735962137093497249,785177832305082826579135707562767426031 %N A350913 Number of oriented graphs on n unlabeled nodes whose underlying graph is regular. %H A350913 Andrew Howroyd, <a href="/A350913/b350913.txt">Table of n, a(n) for n = 0..22</a> %Y A350913 The labeled version is A351264. %Y A350913 Row sums of A350912. %Y A350913 Cf. A001174, A005176, A350911. %K A350913 nonn %O A350913 0,3 %A A350913 _Andrew Howroyd_, Jan 29 2022