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 A113907 #19 Oct 29 2019 11:18:27 %S A113907 14,52,78,133,248 %N A113907 Dimensions of the five sporadic Lie groups. %D A113907 N. Bourbaki, Groupes et Algèbres de Lie, Chap. 4, 5 and 6, Hermann, Paris, 1968. %H A113907 P. Cvitanovic, <a href="http://www.nbi.dk/~predrag/papers/PRD14-76.pdf">Group theory for Feynman diagrams in non-Abelian gauge theories</a>, Phys. Rev. D14 (1976), 1536-1553, see p. 14. - Tom Copeland, Sep 21 2011 %H A113907 Dave Rubin and Eric Weinstein, <a href="https://www.youtube.com/watch?v=Q0QtZmLC14U">Tits' Freudenthal Magic Square and Other Mathematical Theories (Eric Weinstein pt. 3)</a> (2017) %H A113907 Robert A. Wilson, <a href="http://www.maths.qmul.ac.uk/~raw/talks_files/RTCtalk.pdf">248 and all that</a>, 21/09/07, R.T. Curtis 60th birthday conference %K A113907 nonn,fini,full %O A113907 1,1 %A A113907 Justin Herrick (justin(AT)lionstower.com), Jan 29 2006