A036587 Number of binary rooted trees with n nodes and height at most 4.

1, 1, 1, 2, 3, 5, 6, 8, 8, 9, 7, 7, 4, 3, 1, 1

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• fini
• full

Links

• 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