A377130 Number of polycubes of size n and symmetry class DEE.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 3, 1, 0, 0, 0, 1, 6, 2, 1, 0, 0, 4, 13, 5, 1, 0, 0, 6, 28, 9, 4, 0, 0, 20, 61, 26, 7, 0, 0, 36, 129, 43, 18, 0, 0, 94, 274, 109, 33, 0, 0, 182, 582, 201, 81, 2, 0, 438, 1231, 501

Offset

1,31

Comments

See link "Counting free polycubes" for explanation of notation.

Links

Table of n, a(n) for n=1..80.

John Mason, Counting free polycubes

Crossrefs

Cf. A000162, A038119.

Sequence in context: A193525 A049828 A342557 * A378005 A286131 A285631

Adjacent sequences: A377127 A377128 A377129 * A377131 A377132 A377133

Keyword

nonn

Author

John Mason, Oct 17 2024

Status

approved