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 A272368 #28 Nov 04 2023 13:50:07 %S A272368 1,3,14,165,2676,59541,1448610,37029315,971243592 %N A272368 Number of polycubes with n cells, allowing vertex connections and edge connections as well as face connections, identifying mirror images. %e A272368 There are 3 ways to join two cells of the cubic grid at faces, edges, or vertices, so a(2) = 3. %Y A272368 Cf. A272385 (distinguishing mirror images), A268666 (no vertex connections), A038119 (face connections only). %Y A272368 38th row of A366766. %K A272368 nonn,nice,more,hard %O A272368 1,2 %A A272368 _George Sicherman_, Apr 27 2016 %E A272368 a(8) and a(9) from _Joerg Arndt_ and _Márk Péter Légrádi_, May 28 2023