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A220774
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Number of tilings of an 8 X n rectangle using integer-sided rectangular tiles of equal area.
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2
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1, 4, 43, 190, 2401, 15242, 169952, 1300180, 13036591, 108621208, 1032057418, 8944259474, 82759543294, 731238928631, 6675861553591, 59555740575193, 540068620936576, 4841141720468505, 43752880978895078, 393139794235777264, 3547076584685999770
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OFFSET
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0,2
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COMMENTS
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a(n+1)/a(n) tends to 9.00709752194696998983966861825826335610901... - Vaclav Kotesovec, Dec 25 2012
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LINKS
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EXAMPLE
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a(1) = 4:
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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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