A376797 Number of free rooted (or pointed) polycubes with n cells.

1, 1, 4, 16, 90, 562, 3960, 29311, 225370, 1766974, 14030739, 112269684, 903020688

Offset: 1

Author

John Mason, Oct 04 2024

Keywords

• nonn
• hard
• more

Examples

			There are 2 polycubes of size 3, each having 2 distinct cells. Therefore a(3)=4.
For further examples, see link.
		

Links

• John Mason, Pointed polycube examples

Crossrefs

Cf. A038119, A126202, A376798, A376799.