A248890 - cp's OEIS frontend

A248890 Number of rooted trees with n nodes such that for each inner node no more than k subtrees corresponding to its children have exactly k nodes.

n	a(n)
0	0
1	1
2	1
3	1
4	2
5	4
6	8
7	16
8	34
9	75
10	166
11	374
12	849
13	1952
14	4522
15	10566
16	24840
17	58760
18	139693
19	333702
20	800412
21	1927207
22	4655997
23	11283835
24	27423930
25	66825194
26	163227234
27	399587270
28	980222058
29	2409181633
30	5931839530
31	14629639579
32	36137308192
33	89395224033

[0, 1, 1, 1, 2, 4, 8, 16, 34, 75, 166, 374, 849, 1952, 4522, 10566, 24840, 58760, 139693, 333702, 800412, 1927207, 4655997, 11283835, 27423930, 66825194, 163227234, 399587270, 980222058, 2409181633, 5931839530, 14629639579, 36137308192, 89395224033]

cp's OEIS Frontend

A248890 Number of rooted trees with n nodes such that for each inner node no more than k subtrees corresponding to its children have exactly k nodes.

Table of values

List of values