A036622 Number of 6-ary rooted trees with n nodes and height at most 5.
1, 1, 1, 2, 4, 9, 19, 42, 88, 188, 393, 821, 1692, 3483, 7101, 14436, 29162, 58703, 117577, 234695, 466493, 924149, 1824100, 3588957, 7038072, 13760324, 26821365, 52130255, 101033183, 195279030, 376427128, 723731809, 1387917803, 2655019934
Offset: 0
Links
- Sean A. Irvine, Table of n, a(n) for n = 0..1554
- 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