A383737 Cluster series for percolation on polyominoid cells, with connections only between orthogonal cells ("hard" polyominoids).

1, 8, 40, 168, 720, 2886, 11684, 46536, 181328

Offset

0,2

Comments

Equivalently, cluster series for percolation on polystick cells in 3 dimensions, with connections only between orthogonal cells.

Links

Table of n, a(n) for n=0..8.

Index entries for sequences related to cluster series.

Crossrefs

Rows 13 and 17 of A383735.

Cf. A299279 (coordination sequence for hard polyominoid cells), A365654, A365655, A383736.

Sequence in context: A217375 A113071 A006726 * A165665 A000760 A171189

Adjacent sequences: A383734 A383735 A383736 * A383738 A383739 A383740

Keyword

nonn,more

Author

Pontus von Brömssen, May 10 2025

Status

approved