A365562 Number of fixed n-polysticks (or polyedges) in 4 dimensions.

4, 28, 252, 2600, 29248, 349132, 4351944, 56062681, 741132648, 10003860384, 137367013012, 1913480724898, 26980497086268, 384428067086544, 5527398761722192

Offset: 1

Author

Pontus von Brömssen, Sep 09 2023

Keywords

• nonn
• hard
• more

Links

• Stephan Mertens and Cristopher Moore, Series expansion of the percolation threshold on hypercubic lattices, J. Phys. A: Math. Theor., 51 (2018), 475001; arXiv:1805.02701 [cond-mat.stat-mech], 2018.
• Index entries for sequences related to polyominoes.

Crossrefs

Cf. A096267 (2 dimensions), A365560 (3 dimensions), A365561 (free), A365564 (5 dimensions).

42nd row of A366767.

Extensions

a(8)-a(15) from Mertens and Moore (a(8)-a(12) computed from Appendix A, a(13)-a(15) from Table 1), added by Pontus von Brömssen, Jun 29 2025