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 A241842 #14 Feb 16 2025 08:33:22 %S A241842 0,0,1,4,18,106,846,11095,261056,11716488,1006700452 %N A241842 Number of simple connected graphs on n nodes that are non-integral. %H A241842 Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a> %H A241842 Travis Hoppe and Anna Petrone, <a href="http://arxiv.org/abs/1408.3644">Integer sequence discovery from small graphs</a>, arXiv preprint arXiv:1408.3644 [math.CO], 2014. %H A241842 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IntegralGraph.html">Integral Graph</a> %F A241842 a(n) = A001349(n) - A064731(n). %Y A241842 Cf. A001349, A064731. %K A241842 nonn,less,more %O A241842 1,4 %A A241842 _Travis Hoppe_ and _Anna Petrone_, Apr 29 2014