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A007105
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Number of labeled Eulerian 3-regular digraphs with n nodes.
(Formerly M5285)
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0
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1, 0, 0, 0, 1, 44, 7570, 1975560, 749649145, 399035751464, 289021136349036, 277435664056527360, 345023964977303838105, 545099236551025860229460, 1075595203804151695555622446
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OFFSET
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0,6
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REFERENCES
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O. Gonzalez, C. Beltran and I. Santamaria, On the Number of Interference Alignment Solutions for the K-User MIMO Channel with Constant Coefficients, arXiv preprint arXiv:1301.6196, 2013. - From N. J. A. Sloane, Feb 19 2013
R. W. Robinson, personal communication.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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Table of n, a(n) for n=0..14.
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CROSSREFS
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Sequence in context: A220599 A078279 A203974 * A180842 A172753 A183749
Adjacent sequences: A007102 A007103 A007104 * A007106 A007107 A007108
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane.
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STATUS
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approved
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