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A172594
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Number of 5*n X 5 0..1 arrays with row sums 2 and column sums 2*n
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1
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2040, 56586600, 2604964362000, 149144498504001000, 9647422924194982967040, 674741194624071430134879600, 49825573548689359631837113344000, 3829361053685468612006211542840385000
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OFFSET
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1,1
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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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