A048811 - OEIS

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A048811

Number of rooted trees with n nodes with every leaf at height 6.

3

1, 1, 2, 3, 6, 9, 17, 27, 47, 78, 135, 224, 384, 642, 1088, 1827, 3088, 5182, 8736, 14661, 24660, 41378, 69500, 116534, 195509, 327627, 549104, 919593, 1539985, 2577399, 4313102, 7214374, 12064930, 20169283, 33710370, 56324729, 94089240

(list; graph; refs; listen; history; text; internal format)

OFFSET

7,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 7..1000

N. J. A. Sloane, Transforms

Index entries for sequences related to rooted trees

FORMULA

Euler transform of A048810 shifted right.

CROSSREFS

Cf. A048808-A048816.

Column k=6 of A244925.

Sequence in context: A056532 A079289 A365377 * A142155 A092351 A048812

Adjacent sequences: A048808 A048809 A048810 * A048812 A048813 A048814

KEYWORD

nonn

AUTHOR

Christian G. Bower, Apr 15 1999

STATUS

approved