A036640 - OEIS

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A036640

Number of 5-ary rooted trees with n nodes and height exactly 9.

0

0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 8, 43, 188, 728, 2585, 8635, 27543, 84814, 254024, 744236, 2141796, 6074125, 17017569, 47191964, 129735956, 354005955, 959729627, 2587187003, 6939628486, 18531674702, 49290612443, 130633635667, 345089565836

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OFFSET

0,11

LINKS

Table of n, a(n) for n=0..32.

E. M. Rains and N. J. A. Sloane, On Cayley's Enumeration of Alkanes (or 4-Valent Trees), J. Integer Sequences, Vol. 2 (1999), Article 99.1.1.

Index entries for sequences related to rooted trees

CROSSREFS

Sequence in context: A362904 A036424 A036633 * A036647 A000429 A055853

Adjacent sequences: A036637 A036638 A036639 * A036641 A036642 A036643

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane.

STATUS

approved