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A172953
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Number of n X n 0..9 arrays with row sums 15 and column sums 15.
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1
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0, 4, 3079, 59930080, 11745341072931, 17491353277138361640, 159265228322047609940846213, 7444077333816868635568524618503936, 1543634978788620301563132446180065043318640
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OFFSET
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1,2
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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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