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 A063859 #15 Feb 22 2023 12:00:33 %S A063859 1,3,8,46,790,37829,4134939 %N A063859 Number of abstract dissection types of configurations of n points in 2 dimensions. %H A063859 Lukas Finschi, <a href="https://finschi.com/math/om/">Homepage of Oriented Matroids</a> %H A063859 L. Finschi and K. Fukuda, <a href="http://www.cccg.ca/proceedings/2001/finschi-1053.ps.gz">Complete combinatorial generation of small point set configurations and hyperplane arrangements</a>, pp. 97-100 in Abstracts 13th Canadian Conference on Computational Geometry (CCCG '01), Waterloo, Aug. 13-15, 2001. %Y A063859 A diagonal of A063858. %Y A063859 For n <= 7, this is A241600(n)-1. %K A063859 nonn,more %O A063859 2,2 %A A063859 _N. J. A. Sloane_, Aug 26 2001