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 A305376 #7 Jun 12 2018 12:11:16 %S A305376 1,1,1,1,1,6,49,1179,55278,4888160 %N A305376 Number of crossing-minimal order types of n points in the plane. %H A305376 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 A305376 Cf. A006247, A305375. %K A305376 nonn,more %O A305376 1,6 %A A305376 _N. J. A. Sloane_, Jun 12 2018