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A285179
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Number of disjoint non-ordered pairs of n^2 X n^2 S-permutation matrices.
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2
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OFFSET
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1,2
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COMMENTS
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Note that although the two Yordzhev papers have similar titles, they are different papers.
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LINKS
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FORMULA
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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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