A036647 Number of 6-ary rooted trees with n nodes and height exactly 9.

0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 8, 43, 188, 728, 2593, 8698, 27890, 86384, 260360, 767802, 2224500, 6351734, 17917830, 50031879, 138496032, 380530622, 1038804643, 2819830134, 7616354584, 20480875544, 54856709018, 146407218037, 389486931550

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: A036424 A036633 A036640 * A000429 A055853 A137748

Adjacent sequences: A036644 A036645 A036646 * A036648 A036649 A036650

Keyword

nonn,fini

Author

N. J. A. Sloane.

Status

approved