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A006771
Exponential self-convolution of numbers of trees on n nodes.
+0
1
1, 2, 4, 8, 18, 46, 128, 372, 1174, 3820, 13170, 46714, 172490, 652758, 2547196, 10156810, 41495158, 172810254, 734132414, 3171713642, 13933910250, 62121022408, 280907384318, 1286617710114, 5964793344934
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 1 13:27 EST 2009. Contains 167806 sequences.
AT&T Labs Research
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