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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
OFFSET
1,3
REFERENCES
Marc Noy, Email to N. J. A. Sloane, May 19 2014.
LINKS
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
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 19 2014
STATUS
approved