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Search: id:A086510
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| A086510 |
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Number of n X n real (0,1)-matrices with all eigenvalues >= 0. |
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+0
3
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OFFSET
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0,2
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LINKS
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B. D. McKay, F. E. Oggier, G. F. Royle, N. J. A. Sloane, I. M. Wanless and H. S. Wilf, Acyclic digraphs and eigenvalues of (0,1)-matrices
B. D. McKay, F. E. Oggier, G. F. Royle, N. J. A. Sloane, I. M. Wanless and H. S. Wilf, Acyclic digraphs and eigenvalues of (0,1)-matrices, J. Integer Sequences, 7 (2004), #04.3.3.
Index entries for sequences related to binary matrices
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CROSSREFS
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Cf. A003024, A055165, A085656.
Adjacent sequences: A086507 A086508 A086509 this_sequence A086511 A086512 A086513
Sequence in context: A133067 A042677 A134296 this_sequence A123113 A126742 A013051
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KEYWORD
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nonn,more
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AUTHOR
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Frederique Oggier (frederique.oggier(AT)epfl.ch) and njas, Sep 10 2003
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