A036632 Number of 4-ary rooted trees with n nodes and height exactly 8.

0, 0, 0, 0, 0, 0, 0, 0, 1, 7, 34, 136, 480, 1560, 4784, 14056, 39992, 111001, 302110, 809398, 2140595, 5600396, 14518475, 37342551, 95390479, 242204920, 611682570, 1537362741, 3847104992, 9588937190, 23813932170, 58944367746, 145449940440

Offset

0,10

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: A120470 A036423 A147827 * A036639 A036646 A000418

Adjacent sequences: A036629 A036630 A036631 * A036633 A036634 A036635

Keyword

nonn,fini

Author

N. J. A. Sloane.

Status

approved