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A226543
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Number of tilings of a 9 X n rectangle using 1 X 1 squares and L-tiles.
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2
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1, 1, 55, 595, 11012, 168925, 2760690, 44159095, 711479843, 11435477118, 183947396032, 2958142131138, 47575298963072, 765124447990418, 12305134306097753, 197897152964385186, 3182680323964197938, 51185438892782012288, 823189555932846017125
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OFFSET
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0,3
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COMMENTS
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An L-tile is a 2 X 2 square with the upper right 1 X 1 subsquare removed and no rotations are allowed.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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