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 A305375 #6 Jun 12 2018 12:11:09 %S A305375 1,1,1,1,1,3,17,489,28103,2866895 %N A305375 Number of crossing-maximal order types of n points in the plane. %H A305375 Alexander Pilz and Emo Welzl, <a href="http://drops.dagstuhl.de/opus/volltexte/2015/5119/">Order on order types</a>, Discrete & Computational Geometry, 59 (No. 4, 2015), 886-922. %Y A305375 Cf. A006247, A305376. %K A305375 nonn,more %O A305375 1,6 %A A305375 _N. J. A. Sloane_, Jun 12 2018