A036593 Number of binary rooted trees with n nodes and height exactly 4.

0, 0, 0, 0, 1, 3, 5, 7, 8, 9, 7, 7, 4, 3, 1, 1

Offset

0,6

Links

Table of n, a(n) for n=0..15.

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: A196084 A008508 A163301 * A086674 A137203 A102890

Adjacent sequences: A036590 A036591 A036592 * A036594 A036595 A036596

Keyword

nonn,fini,full

Author

N. J. A. Sloane.

Status

approved