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Number of polyominoes of order 2n that can be tiled by dominoes in a unique way.
3

%I #13 Jul 09 2019 13:05:57

%S 1,3,20,170,1728,18878,214278,2488176,29356463

%N Number of polyominoes of order 2n that can be tiled by dominoes in a unique way.

%C 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).

%H Herman Tulleken, <a href="https://www.researchgate.net/publication/333296614_Polyominoes">Polyominoes 2.2: How they fit together</a>, (2019).

%Y Cf. A056785, A056786, A213376, A213378.

%K hard,more,nonn

%O 1,2

%A _Joseph Myers_, Jun 10 2012