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 A296604 #17 Jan 26 2024 15:55:47 %S A296604 0,0,0,0,1,2,1,4,2,4,3,4,2,8,1,3,3,4,0,6,1,4,0,2,0,4,3,0,0,1,0,5,0,1, %T A296604 0,0,3,0,0,0,0,7,0,0,0,0,1,0,0,0,0,7,0,0,0,0,0,0,0,0,0,5,0,0,0 %N A296604 Number of Johnson solids with n faces. %C A296604 Sum(n>0, a(n)) = 92, the number of Johnson solids, as conjectured by Johnson and proved by Zalgaller. %C A296604 a(n) > 0 if and only if n is a member of A296603. %H A296604 Norman W. Johnson, <a href="http://dx.doi.org/10.4153/CJM-1966-021-8">Convex Polyhedra with Regular Faces</a>, Canadian Journal of Mathematics, 18 (1966), 169-200. %H A296604 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/JohnsonSolid.html">Johnson Solid</a>. %H A296604 Wikipedia, <a href="https://en.wikipedia.org/wiki/List_of_Johnson_solids">List of Johnson solids</a>. %H A296604 Victor A. Zalgaller, <a href="http://mi.mathnet.ru/eng/znsl1408">Convex Polyhedra with Regular Faces</a>, Zap. Nauchn. Sem. LOMI, 1967, Volume 2. Pages 5-221 (Mi znsl1408). %F A296604 a(62) = 5. %F A296604 a(n) = 0 for n > 62. %e A296604 The square pyramid is the only Johnson solid with five faces, so a(5) = 1. %Y A296604 Cf. A181708, A242731, A296602, A296603. %K A296604 nonn %O A296604 1,6 %A A296604 _Jonathan Sondow_, Jan 28 2018