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 A063852 #13 Feb 22 2023 12:00:33 %S A063852 1,2,3,7,25,2901 %N A063852 Number of nonisomorphic nondegenerate oriented matroids with n points in dimensions 2 through n-1. %H A063852 Lukas Finschi, <a href="https://finschi.com/math/om/">Homepage of Oriented Matroids</a> %H A063852 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 A063852 Row sums of A063851. %K A063852 nonn,more %O A063852 3,2 %A A063852 _N. J. A. Sloane_, Aug 26 2001