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 A063926 #15 Jan 13 2023 21:12:19 %S A063926 10,32,24,96,1200,720 %N A063926 Number of edges in the six regular 4-dimensional polytopes. %C A063926 Sorted by number of 3-dimensional faces. %D A063926 H. S. M. Coxeter, Regular Polytopes, 3rd ed., Dover, NY, 1973. %H A063926 Paul Bourke, <a href="http://paulbourke.net/geometry/hyperspace/">Regular polytopes (Platonic solids) in 4D</a> %H A063926 <a href="/index/Pol#polytopes">Index entries for sequences related to polytopes</a> %F A063926 a(n) = A063927(n) + A063925(n) - A063924(n). %e A063926 a(2) = 32 since a 4D hypercube contains thirty-two edges. %Y A063926 Cf. A053016, A063722, A063723, A063924, A063925, A063927. %K A063926 fini,full,nonn %O A063926 1,1 %A A063926 _Henry Bottomley_, Aug 15 2001