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 A038173 #46 Jun 26 2025 14:32:03 %S A038173 1,1,4,20,131,1211,12734,144158,1687737,20196788,245366931,3016835487 %N A038173 Number of "connected animals" formed from n rhombic dodecahedra (or edge-connected cubes) in the face-centered cubic lattice, allowing translation and rotations of the lattice and reflections. %C A038173 This extends earlier work of Torsten Sillke (torsten.sillke(AT)lhsystems.com). %H A038173 S. T. Coffin, <a href="http://www.johnrausch.com/PuzzlingWorld/">Puzzling World of Polyhedral Dissections</a>, Oxford Univ. Press, 1991. %H A038173 George Sicherman, <a href="https://sicherman.net/polyrhons/catalogue.html">Catalogue of Polyrhons</a> %H A038173 T. Sillke, <a href="http://www.mathematik.uni-bielefeld.de/~sillke/PENTA/notar">Notations for polyspheres</a> %H A038173 <a href="/index/Fa#fcc">Index entries for sequences related to f.c.c. lattice</a> %Y A038173 Cf. A000162, A038119 (for simple-cubic lattice), A038168-A038174, A300812 (refined by number of contacts). %Y A038173 33rd row of A366766. %K A038173 nonn,hard,more %O A038173 1,3 %A A038173 _Achim Flammenkamp_ %E A038173 a(10) from _George Sicherman_, Jul 24 2012 %E A038173 a(11) from _Joerg Arndt_ and _Márk Péter Légrádi_, Apr 30 2023 %E A038173 a(12) from _Bert Dobbelaere_, Jun 26 2025