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%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
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