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A174251
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Number of tilings of a 7 X n rectangle with n heptominoes of any shape.
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5
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1, 1, 7, 259, 9525, 270827, 6633399, 158753814, 3825111851, 96608374284, 2446223788303
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history;
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OFFSET
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0,3
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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Bob Harris (me13013(AT)gmail.com), Mar 13 2010
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STATUS
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approved
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