A120648 Number of 4-anisohedral polyominoes of order n.

0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 2, 0, 1, 1, 1, 2, 7, 2, 5, 2, 9, 3, 11, 8

Offset

1,12

Links

Table of n, a(n) for n=1..25.

Joseph Myers, Polyomino tiling

Crossrefs

Sequence in context: A152221 A144092 A333467 * A215401 A254606 A175358

Adjacent sequences: A120645 A120646 A120647 * A120649 A120650 A120651

Keyword

nonn

Author

N. J. A. Sloane, Aug 18 2006

Extensions

Adjusted to offset 1 and a(24) and a(25) added by Joseph Myers, Nov 17 2010

Status

approved