A075679 Number of free (rotations and reflections count as same shape) polyominoids (shapes made of faces of cubes) with n squares.

1, 2, 9, 54, 448, 4650, 53611, 655033, 8259635, 106371085, 1391032357, 18412269694

Offset: 1

Author

Joseph Myers, Sep 24 2002

Keywords

• hard
• more
• nonn

Links

• John Mason, Drawings of polyominoids of sizes 1 through 5
• Skye Rothstein, Folding and Embedding Cubical Complexes, Undergraduate senior project, Bard College (2024). See p. 9.
• Wikipedia, Polyominoid

Crossrefs

Cf. A075678, A056846.

18th row of A366766.