cp's OEIS Frontend

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.

A038169 Number of "connected animals" formed from n triakis truncated tetrahedra connected along hexagonal faces in the triakis truncated tetrahedral honeycomb, allowing translations, rotations, and reflections of the honeycomb.

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%I A038169 #21 May 30 2025 23:52:34
%S A038169 1,1,1,3,7,24,88,385,1713,8112,38869,190128,938357
%N A038169 Number of "connected animals" formed from n triakis truncated tetrahedra connected along hexagonal faces in the triakis truncated tetrahedral honeycomb, allowing translations, rotations, and reflections of the honeycomb.
%C A038169 Previous name was 'Number of "connected animals" formed from n tricapped truncated tetrahedra in the diamond lattice, allowing translation and rotations of the lattice and reflections.' - _Peter Kagey_, May 30 2025
%D A038169 A. T. Balaban and Paul von R. Schleyer, "Graph theoretical enumeration of polymantanes", Tetrahedron, (1978), vol. 34, pp. 3599-3609. See Page 3605.
%H A038169 S. T. Coffin, <a href="http://www.johnrausch.com/PuzzlingWorld/">Puzzling World of Polyhedral Dissections</a>, Oxford Univ. Press, 1991.
%H A038169 Peter Kagey, <a href="/A038169/a038169.pdf">Illustration of a(5)=7</a>.
%H A038169 Wikipedia, <a href="https://en.wikipedia.org/wiki/Triakis_truncated_tetrahedral_honeycomb">Triakis truncated tetrahedral honeycomb</a>
%Y A038169 Cf. A000162, A038119, A038168, A038170, A038171, A038172, A038173, A038174.
%K A038169 nonn,more
%O A038169 1,4
%A A038169 _Achim Flammenkamp_
%E A038169 Name changed by _Peter Kagey_, May 30 2025