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A000311
Schroeder's fourth problem; also number of phylogenetic trees with n nodes; also number of total partitions of n.
(Formerly M3613 N1465)
+0
30
0, 1, 1, 4, 26, 236, 2752, 39208, 660032, 12818912, 282137824, 6939897856, 188666182784, 5617349020544, 181790703209728, 6353726042486272, 238513970965257728, 9571020586419012608, 408837905660444010496, 18522305410364986906624
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.
AT&T Labs Research
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