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 A383803 #12 May 12 2025 14:35:03 %S A383803 1,1,2,3,8,14,35,68,154,318,683,1362,2668,4645,7326,9594,10048,7605, %T A383803 4145,1539,445,86,16,1,1 %N A383803 Number of polyforms with n cells on the faces of a tetrakis hexahedron up to rotation. %C A383803 These are "one-sided" polyforms. %C A383803 The tetrakis hexahedron is the polyhedral dual of the truncated octahedron. %H A383803 Peter Kagey, <a href="/A383803/a383803.pdf">Illustration of a(4)=8</a>. %H A383803 Wikipedia, <a href="https://en.wikipedia.org/wiki/Tetrakis_hexahedron">Tetrakis hexahedron</a> %Y A383803 Cf. A383802 (free), A383827. %Y A383803 Tetrahedral symmetry: A383826. %Y A383803 Octahedral symmetry: A383799 (row 3), A383801, A383803, A383805, A383807, A383808. %Y A383803 Icosahedral symmetry: A030137, A030138, A383491, A383493, A383495, A383497, A383498, A383786. %K A383803 nonn,fini,full %O A383803 0,3 %A A383803 _Peter Kagey_, May 10 2025