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 A383493 #16 Jun 10 2025 13:54:45 %S A383493 1,1,2,3,5,7,15,24,49,91,182,344,688,1328,2641,5182,10288,20240,40014, %T A383493 78577,154562,302511,590930,1147805,2219309,4260085,8118169,15324786, %U A383493 28630807,52826179,96109611,172029602,302353990,520508934,875430977,1433922264,2279645080,3503957379 %N A383493 Number of polyforms with n cells on the faces of a triakis icosahedron up to rotation. %C A383493 These are "one-sided" polyforms. %C A383493 The triakis icosahedron is the polyhedral dual of the truncated dodecahedron. %H A383493 Bert Dobbelaere, <a href="/A383493/b383493.txt">Table of n, a(n) for n = 0..60</a> %H A383493 Wikipedia, <a href="https://en.wikipedia.org/wiki/Triakis_icosahedron">Triakis icosahedron</a> %Y A383493 Cf. A383492 (free). %Y A383493 Cf. A030137 (dodecahedron), A030138 (icosahedron), A383491 (rhombic triacontahedron), A383495 (pentakis dodecahedron), A383497 (disdyakis triacontahedron), A383498 (deltoidal hexecontahedron). %Y A383493 Cf. A151531 (triakis triangular tiling). %K A383493 nonn,fini,full %O A383493 0,3 %A A383493 _Peter Kagey_, Apr 28 2025 %E A383493 More terms from _Bert Dobbelaere_, Jun 10 2025