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A116977
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Number of n X n rational {0,1}-matrices of determinant 0, up to row and column permutations.
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0
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OFFSET
| 1,2
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REFERENCES
| Miodrag Zivkovic, Classification of small (0,1) matrices, Linear Algebra and its Applications, 414 (2006), 310-346.
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FORMULA
| a(n) = A002724(n) - A116976(n) [From Max Alekseyev (maxale(AT)gmail.com), Feb 28 2010]
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CROSSREFS
| Cf. A046747, A002724.
Sequence in context: A183375 A000530 A121674 * A163694 A062796 A023887
Adjacent sequences: A116974 A116975 A116976 * A116978 A116979 A116980
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KEYWORD
| more,nonn
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AUTHOR
| Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 01 2006
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