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A089436
Number of non-crossing connected graphs on n nodes on a circle in which a fixed (distinguished) node has degree one.
+0
4
1, 2, 9, 54, 374, 2820, 22485, 186494, 1592778, 13914108, 123750874, 1116809628, 10201516332, 94140605832, 876332565837, 8219124900558, 77594375595266, 736785675010380, 7031930543228910, 67420537625021460, 649070964647075700
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 4 23:11 EST 2009. Contains 170347 sequences.
AT&T Labs Research
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