A241599 Number of bipartite non-crossing graphs on n nodes.

1, 2, 7, 34, 196, 1246, 8429, 59518, 433636, 3235784, 24604262, 189954812, 1485057796, 11733092074, 93535510865, 751442793206, 6077654336252, 49447165408096, 404406321926378, 3322915327050652

Offset

1,2

References

Marc Noy, Email to N. J. A. Sloane, May 19 2014.

Links

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.

Crossrefs

Sequence in context: A190631 A326560 A199475 * A356118 A307696 A237645

Adjacent sequences: A241596 A241597 A241598 * A241600 A241601 A241602

Keyword

nonn

Author

N. J. A. Sloane, May 19 2014

Status

approved