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A241598 Number of connected bipartite non-crossing graphs on n nodes. 0
1, 1, 3, 13, 65, 355, 2051, 12329, 76317, 483191, 3114551, 20370173, 134844697, 901750067, 6082836811, 41340928785, 282808887861, 1945826116687, 13456445362911, 93483434517701 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

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 C_b on page 116.

CROSSREFS

Sequence in context: A186577 A141342 A232222 * A155867 A009102 A080227

Adjacent sequences:  A241595 A241596 A241597 * A241599 A241600 A241601

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 19 2014

STATUS

approved

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Last modified August 6 00:46 EDT 2021. Contains 346493 sequences. (Running on oeis4.)