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 A384111 #15 May 26 2025 05:50:05 %S A384111 1,3,3,12,38,167,731,3504,16734,81247,392387,1886246,8958474,41841440, %T A384111 190731843,841422704,3558291221,14287757043 %N A384111 Number of connected components of n faces of the truncated icosidodecahedron up to the 120 rotations and reflections of the truncated icosidodecahedron. %C A384111 Two faces are connected if they share an edge. %C A384111 These are "free" polyforms because both rotations and reflections are allowed. %C A384111 The truncated icosidodecahedron is the polyhedral dual of the disdyakis triacontahedron. %H A384111 Peter Kagey, <a href="/A384111/a384111_1.pdf">Illustration of a(1)-a(3)</a>. %H A384111 Wikipedia, <a href="https://en.wikipedia.org/wiki/Truncated_icosidodecahedron">Truncated icosidodecahedron</a>. %e A384111 a(1) = 3 because the truncated icosidodecahedron is not face transitive, but has three distinct orbits of faces: (1) squares, (2) hexagons, and (3) decagons. %Y A384111 Cf. A384067 (cuboctahedron), A384068 (truncated cube), A384069 (truncated octahedron), A384070 (rhombicuboctahedron), A384071 (cuboctahedron), A384072 (snub cube), A384104 (truncated tetrahedron), A384107 (icosidodecahedron), A384108 (truncated dodecahedron), A384109 (truncated icosahedron), A384110 (rhombicosidodecahedron), A384111 (truncated icosidodecahedron), A384112 (snub dodecahedron). %K A384111 nonn,fini,more %O A384111 0,2 %A A384111 _Peter Kagey_, May 20 2025 %E A384111 a(9)-a(17) from _Bert Dobbelaere_, May 26 2025