A191148 Number of n-cell fixed line-convex polycubes in 3 dimensions.

1, 3, 15, 86, 522, 3241, 20256, 126520

Offset: 1

Author

Gill Barequet, May 26 2011

Keywords

• nonn
• more
• hard

Comments

A polycube is "line-convex" if every axis-parallel line intersects it in at most one continuous sequence of cells.

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.

Crossrefs

Cf. A067675 (convex polyominoes).