A126085 Number of n-node rooted trees of height 9.

0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 9, 53, 251, 1043, 3961, 14102, 47816, 156129, 494769, 1530583, 4642490, 13853571, 40779959, 118666510, 341938083, 977028128, 2771407719, 7811504825, 21895173627, 61069528116, 169590519864, 469117076770

Offset

1,11

Links

N. J. A. Sloane, Table of n, a(n) for n=1..200

J. Riordan, Enumeration of trees by height and diameter, IBM J. Res. Dev. 4 (1960), 473-478.

Index entries for sequences related to rooted trees

Index entries for sequences related to trees

Maple

For Maple program see link in A000235.

Crossrefs

Column h=9 of A034781.

Sequence in context: A094793 A197499 A036425 * A055854 A202514 A005025

Adjacent sequences: A126082 A126083 A126084 * A126086 A126087 A126088

Keyword

nonn

Author

N. J. A. Sloane, Mar 02 2007

Status

approved