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, 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