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A213377
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Number of polyominoes of order 2n that can be tiled by dominoes in a unique way.
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3
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OFFSET
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1,2
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COMMENTS
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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).
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LINKS
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Table of n, a(n) for n=1..9.
Herman Tulleken, Polyominoes 2.2: How they fit together, (2019).
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CROSSREFS
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Cf. A056785, A056786, A213376, A213378.
Sequence in context: A276315 A145329 A051643 * A216583 A154644 A321276
Adjacent sequences: A213374 A213375 A213376 * A213378 A213379 A213380
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KEYWORD
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hard,more,nonn
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AUTHOR
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Joseph Myers, Jun 10 2012
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STATUS
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approved
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