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 A202287 #12 Feb 08 2022 05:11:33 %S A202287 9,36,84,90,36 %N A202287 Number of faces of dimension n in a tight triangulation of the manifold CP^2. %H A202287 F. Chapoton and L. Manivel, <a href="http://arxiv.org/abs/1109.6490">Triangulations and Severi varieties</a>, arXiv preprint arXiv:1109.6490 [math.AG], 2011. %K A202287 nonn,fini,full %O A202287 0,1 %A A202287 _N. J. A. Sloane_, Dec 15 2011