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A241599
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Number of bipartite non-crossing graphs on n nodes.
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0
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1, 2, 7, 34, 196, 1246, 8429, 59518, 433636, 3235784, 24604262, 189954812, 1485057796, 11733092074, 93535510865, 751442793206, 6077654336252, 49447165408096, 404406321926378, 3322915327050652
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OFFSET
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1,2
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REFERENCES
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Marc Noy, Email to N. J. A. Sloane, May 19 2014.
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LINKS
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Table of n, a(n) for n=1..20.
Michael Drmota, Anna de Mier, Marc Noy, Extremal statistics on non-crossing configurations, Discrete Math. 327 (2014), 103--117. MR3192420. See G_b on page 116.
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CROSSREFS
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Sequence in context: A190631 A326560 A199475 * A307696 A237645 A117399
Adjacent sequences: A241596 A241597 A241598 * A241600 A241601 A241602
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane, May 19 2014
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STATUS
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approved
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