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 A383805 #11 May 12 2025 14:35:11 %S A383805 1,1,2,6,16,41,119,321,880,2286,5640,12443,23668,36260,43038,38135, %T A383805 25727,13262,5506,1751,468,87,16,1,1 %N A383805 Number of polyforms with n cells on the faces of a deltoidal icositetrahedron up to rotation. %C A383805 These are "one-sided" polyforms. %C A383805 The deltoidal icositetrahedron is the polyhedral dual of the rhombicuboctahedron. %H A383805 Peter Kagey, <a href="/A383805/a383805.pdf">Illustration of a(3)=6</a>. %H A383805 Wikipedia, <a href="https://en.wikipedia.org/wiki/Deltoidal_icositetrahedron">Deltoidal icositetrahedron</a> %Y A383805 Cf. A383804 (free). %Y A383805 Tetrahedral symmetry: A383826. %Y A383805 Octahedral symmetry: A383799 (row 3), A383801, A383803, A383805, A383807, A383808. %Y A383805 Icosahedral symmetry: A030137, A030138, A383491, A383493, A383495, A383497, A383498, A383786. %K A383805 nonn,fini,full %O A383805 0,3 %A A383805 _Peter Kagey_, May 10 2025