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Search: id:A006771
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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 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Cf. A000055.

Sequence in context: A006786 A125809 A000117 this_sequence A113989 A126757 A034766

Adjacent sequences: A006768 A006769 A006770 this_sequence A006772 A006773 A006774

KEYWORD

nonn

AUTHOR

njas

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

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