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 A199808 #17 Feb 11 2020 09:40:59
%S A199808 480,1536,1920,4608,5760,14400,18432,34560,46080,57600,72000,92160,
%T A199808 138240,230400,276480,691200,691200,884736,1105920,1728000,2211840,
%U A199808 2764800,3456000,6635520,8294400,11059200,13824000,26542080,33177600,41472000,82944000,103680000,132710400,331776000,995328000
%N A199808 Sorted number of edges of distinct solutions in the mix of 2 or 3 regular convex 4-polytopes.
%C A199808 Also sorted number of faces of distinct solutions in the mix of 2 or 3 regular convex 4-polytopes. Sorted 2nd or 3rd column of Table 2, p. 11, of Cunningham.
%H A199808 Gabe Cunningham, <a href="http://arxiv.org/abs/1111.1312">Mixing Convex Polytopes</a>, arXiv:1111.1312v1 [math.CO], Nov 5, 2011.
%e A199808 a(1) = 480 because the mix of the pentatope {3,3,3} and the 16-cell hyperoctahedron {3,3,4} has 40 vertices, 480 edges, 1920 faces, 960 polyhedral facets, and an automorphism group of order 23040, and is itself polytopal (not every mix of polytope and polytope is a polytope).
%Y A199808 Cf. A063924, A199545, A199546, A199549, A199807, A199811.
%K A199808 nonn,fini,full
%O A199808 1,1
%A A199808 _Jonathan Vos Post_, Nov 10 2011