A368030 Number of fixed midpoint-free polycubes of size n.

1, 3, 12, 47, 168, 532, 1344, 2707, 5064, 11236, 24768, 53614, 112464, 222564, 411008, 723884, 1263696, 2236452, 3953448, 6855498, 11544816, 18880992, 30104592, 46815126, 70776080, 103864092, 148069152, 205499496, 278917752, 373204912, 496855592, 663056406, 890682648, 1205069272

Offset: 1

Author

Joerg Arndt, Dec 08 2023

Keywords

• nonn

Comments

Midpoint-free means that no three cubes are in positions (x,y,z), (x+dx,y+dx,z+dz), and (x+2*dx,y+2*dx,z+2*dz).

Crossrefs

Cf. A368029.