A213378 Number of polyominoes of order 2n that can be tiled by dominoes in more than one way.

0, 1, 3, 41, 499, 6946, 95964, 1330807, 18395673

Offset: 1

Author

Joseph Myers, Jun 10 2012

Keywords

• hard
• more
• nonn

Comments

Tilings related by a symmetry of the polyomino that is not a symmetry of the tiling count as distinct (thus, the square tetromino counts as being tiled in two distinct ways).

Crossrefs

Cf. A056785, A056786, A213376, A213377.