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 A363200 #24 Dec 09 2023 04:59:23 %S A363200 1,1,2,5,15,55,248,1256,6844,38930,226961,1345641,8072770,48882245, %T A363200 298237393 %N A363200 Number of connected animals formed from n 6-gon connected truncated octahedra, avoiding connected squares. %C A363200 Rotations and reflections are identified. %C A363200 Avoiding connected squares is the same as avoiding neighbors at [0,0,+-2], [0,+-2,0], and [+-2,0,0]. %C A363200 Allowing connected squares gives A038171. %e A363200 The animals for n <= 5 are: %e A363200 n=1: %e A363200 0,0,0 %e A363200 n=2: %e A363200 0,0,0; 1,1,1 %e A363200 n=3: %e A363200 0,0,0; 0,2,2; 1,1,1 %e A363200 0,0,0; 1,1,1; 2,2,2 %e A363200 n=4: %e A363200 0,0,0; 0,2,2; 1,1,1; 1,3,3 %e A363200 0,0,0; 0,2,2; 1,1,1; 2,0,2 %e A363200 0,0,0; 1,1,1; 1,3,3; 2,2,2 %e A363200 0,0,0; 1,1,1; 2,2,2; 3,3,3 %e A363200 0,0,1; 1,1,0; 1,3,2; 2,2,1 %e A363200 n=5: %e A363200 0,0,0; 0,2,2; 0,4,4; 1,1,1; 1,3,3 %e A363200 0,0,0; 0,2,2; 1,1,1; 1,3,3; 2,0,2 %e A363200 0,0,0; 0,2,2; 1,1,1; 1,3,3; 2,2,4 %e A363200 0,0,0; 0,2,2; 1,1,1; 1,3,3; 2,4,4 %e A363200 0,0,0; 0,2,2; 1,1,1; 2,0,2; 2,2,0 %e A363200 0,0,0; 0,2,4; 1,1,1; 1,3,3; 2,2,2 %e A363200 0,0,0; 0,4,4; 1,1,1; 1,3,3; 2,2,2 %e A363200 0,0,0; 1,1,1; 1,3,3; 2,2,2; 3,1,3 %e A363200 0,0,0; 1,1,1; 2,2,2; 2,4,4; 3,3,3 %e A363200 0,0,0; 1,1,1; 2,2,2; 3,3,3; 4,4,4 %e A363200 0,0,1; 0,2,3; 1,1,0; 1,3,2; 2,2,1 %e A363200 0,0,1; 0,2,3; 1,1,2; 1,3,0; 2,2,1 %e A363200 0,0,1; 0,4,1; 1,1,0; 1,3,2; 2,2,1 %e A363200 0,0,1; 1,1,0; 2,2,1; 2,4,3; 3,3,2 %e A363200 0,0,1; 1,1,0; 2,2,1; 3,3,2; 4,4,1 %K A363200 nonn,hard,more %O A363200 1,3 %A A363200 _Joerg Arndt_ and _Márk Péter Légrádi_, May 22 2023 %E A363200 a(14) and a(15) from _Joerg Arndt_, Dec 09 2023