A271081 Number of ways to tile an n X n X n cube with 1 X 1 X 1 and 2 X 2 X 2 tiles.
1, 2, 9, 2089, 3144692, 2748613397101, 107008949868167431857
Offset: 1
Examples
There are 9 ways to tile a cube of side length 3 with cubes of side length 1 and 2, so a(3) = 9.
Crossrefs
Cf. A063443 (a 2D version of this tiling count).