|
| |
|
|
A213377
|
|
Number of polyominoes of order 2n that can be tiled by dominoes in a unique way.
|
|
3
|
| |
|
|
|
OFFSET
|
1,2
|
|
|
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).
|
|
|
LINKS
|
Table of n, a(n) for n=1..9.
Herman Tulleken, Polyominoes 2.2: How they fit together, (2019).
|
|
|
CROSSREFS
|
Cf. A056785, A056786, A213376, A213378.
Sequence in context: A276315 A145329 A051643 * A357094 A216583 A354018
Adjacent sequences: A213374 A213375 A213376 * A213378 A213379 A213380
|
|
|
KEYWORD
|
hard,more,nonn
|
|
|
AUTHOR
|
Joseph Myers, Jun 10 2012
|
|
|
STATUS
|
approved
|
| |
|
|
