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 A007849 #6 Apr 05 2015 02:10:57 %S A007849 2,6,8,80,2112,123648,23963648,25806963456 %N A007849 Number of hyperplanes spanned by the vertices of an n-cube that cover exactly n vertices. %D A007849 O. Aichholzer and F. Aurenhammer, Classifying Hyperplanes in Hypercubes, 10th European Workshop on Computational Geometry, Santander, Spain, March 1994. %H A007849 O. Aichholzer and F. Aurenhammer, <a href="http://dx.doi.org/10.1137/S089548019426348X">Classifying hyperplanes in hypercubes</a>, SIAM J. Discrete Math, Vol. 9, 1996, 225-232. DOI: 10.1137/S089548019426348X %K A007849 nonn,hard,nice %O A007849 1,1 %A A007849 Oswin Aichholzer (oaich(AT)igi.tu-graz.ac.at) %E A007849 Edited by _M. F. Hasler_, Apr 05 2015