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 A268522 #13 Nov 29 2023 11:42:07 %S A268522 0,1,1,2,4,10,27,90,366 %N A268522 Connected simple marginal independence graphs (SMIGs) on n nodes having a unique directed acyclic subgraph. %H A268522 J. Textor, A. Idelberger, and M. Liskiewicz, <a href="https://arxiv.org/abs/1508.00280">Learning from Pairwise Marginal Independencies</a>, arXiv:1508.00280 [cs.AI], 2015. %Y A268522 Cf. A001349, A007776. %K A268522 nonn,more %O A268522 2,4 %A A268522 _N. J. A. Sloane_, Feb 11 2016