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A006850 Exponential self-convolution of numbers of rooted trees on n nodes. 1
1, 2, 6, 20, 74, 290, 1196, 5102, 22418, 100762, 462184, 2155896, 10211440, 49013520, 238127606, 1169523872, 5801045062, 29033594556, 146509374164, 744892740620, 3813481756518, 19647505270704, 101820931159954, 530537879440540, 2778251007843926 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..1000

Index entries for sequences related to rooted trees

CROSSREFS

Cf. A000081.

Sequence in context: A211966 A150153 A150154 * A150155 A150156 A150157

Adjacent sequences:  A006847 A006848 A006849 * A006851 A006852 A006853

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 15 04:03 EDT 2021. Contains 343909 sequences. (Running on oeis4.)