A191097 Number of n-cell fixed tree-like polycubes in 7 dimensions.

1, 7, 91, 1463, 26460, 516691, 10654378, 228828749, 5072503492, 115319769607, 2676413156473, 63193466789474, 1513944235677251

Offset

1,2

References

G. Aleksandrowicz and G. Barequet, Parallel enumeration of lattice animals, Proc. 5th Int. Frontiers of Algorithmics Workshop, Zhejiang, China, Lecture Notes in Computer Science, 6681, Springer-Verlag, 90-99, May 2011.

Links

Table of n, a(n) for n=1..13.

Gill Barequet, Gil Ben-Shachar, and Martha Carolina Osegueda, Applications of Concatenation Arguments to Polyominoes and Polycubes, EuroCG '20, 36th European Workshop on Computational Geometry, (Würzburg, Germany, 16-18 March 2020).

D. S. Gaunt and P. J. Peard, 1/d-expansions for the free energy of weakly embedded site animal models of branched polymers, J. Phys. A: Math. Gen., 33 (2000), 7515-7539. See Appendix A; set y=z=0 in the polynomials to get this sequence.

Crossrefs

Cf. A066158 (fixed tree-like polyominoes), A118356, A191094, A191095, A191096, A191098 (fixed tree-like polycubes in 3, 4, 5, 6, and 8 dimensions, resp.).

Sequence in context: A004368 A243946 A130978 * A234570 A133307 A151833

Adjacent sequences: A191094 A191095 A191096 * A191098 A191099 A191100

Keyword

nonn,more,hard

Author

Gill Barequet, May 25 2011

Extensions

a(8)-a(13) using data from Gaunt and Peard added by Andrei Zabolotskii, Apr 04 2026

Status

approved