A006850 Exponential self-convolution of numbers of rooted trees on n nodes.

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

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