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A285178
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Number of n^2 X n^2 S-permutation matrices that are disjoint from a given one.
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3
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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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Table of n, a(n) for n=1..6.
Krasimir Yordzhev, On the Number of Disjoint Pairs of S-permutation Matrices, arXiv:12112:1628 [math.CO], 2012.
Krasimir Yordzhev, On the number of mutually disjoint pairs of S-permutation matrices, Discrete Mathematics 340 (2017) 1442-1448.
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CROSSREFS
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Cf. A107739, A285179, A285180.
Sequence in context: A134645 A115997 A013786 * A072050 A249765 A201037
Adjacent sequences: A285175 A285176 A285177 * A285179 A285180 A285181
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KEYWORD
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nonn,more
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AUTHOR
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N. J. A. Sloane, Apr 14 2017
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STATUS
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approved
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