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A048812 Number of rooted trees with n nodes with every leaf at height 7. 3
1, 1, 2, 3, 6, 9, 17, 28, 48, 81, 140, 236, 405, 686, 1169, 1984, 3375, 5723, 9721, 16478, 27949, 47354, 80245, 135869, 230054, 389304, 658706, 1114072, 1883900, 3184602, 5382321, 9094154, 15362767, 25946131, 43811971, 73964065 (list; graph; refs; listen; history; text; internal format)
OFFSET

8,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 8..1000

N. J. A. Sloane, Transforms

Index entries for sequences related to rooted trees

FORMULA

Euler transform of A048811 shifted right.

CROSSREFS

Cf. A048808-A048816.

Column k=7 of A244925.

Sequence in context: A048811 A142155 A092351 * A048813 A048814 A048815

Adjacent sequences:  A048809 A048810 A048811 * A048813 A048814 A048815

KEYWORD

nonn

AUTHOR

Christian G. Bower, Apr 15 1999

STATUS

approved

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Last modified January 23 03:08 EST 2019. Contains 319370 sequences. (Running on oeis4.)