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A036619 Number of 5-ary rooted trees with n nodes and height at most 8. 0
1, 1, 1, 2, 4, 9, 20, 47, 112, 276, 684, 1713, 4295, 10797, 27103, 67985, 170202, 425420, 1061324, 2643451, 6573241, 16321357, 40469502, 100219208, 247888403, 612467226, 1511670488, 3727408256, 9182341969, 22600453960, 55579530018 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..30.

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: A058385 A058386 A095980 * A036620 A036721 A014267

Adjacent sequences:  A036616 A036617 A036618 * A036620 A036621 A036622

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified February 18 12:52 EST 2020. Contains 332018 sequences. (Running on oeis4.)