A234599 Number of n-celled solid polyominoes (or free polycubes, allowing mirror-image identification) with chessboard coloring.

2, 1, 4, 10, 46, 204, 1214, 7497, 50826, 355334, 2559074, 18736327, 139027092

Offset: 1

Author

John Mason, Jan 07 2014

Keywords

• nonn
• more

Comments

Chessboard-colored polycubes, considering to be distinct two solids that cannot be mapped onto each other by any form of symmetry.

Crossrefs

Cf. A038119, A001933.

Formula

a(n) = 2*A038119(n) for odd n.

Extensions

a(12)-a(13) from John Mason, Aug 01 2021