A036590 Number of binary rooted trees with n nodes and height at most 7.
1, 1, 1, 2, 3, 6, 11, 23, 45, 90, 171, 325, 598, 1097, 1972, 3531, 6225, 10915, 18898, 32507, 55302, 93410, 156208, 259250, 426227, 695235, 1123742, 1801614, 2862591, 4510432, 7043455, 10904830, 16731444, 25446285, 38349306, 57278489
Offset: 0
Links
- Alois P. Heinz, Table of n, a(n) for n = 0..127
- 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