A318906 - cp's OEIS frontend

A318906 Number of n-node rooted trees in which ten equals the maximal number of nodes in paths starting at a leaf and ending at the first branching node or at the root.

n	a(n)
10	1
11	1
12	3
13	8
14	22
15	60
16	167
17	465
18	1306
19	3681
20	10421
21	29593
22	84298
23	240705
24	688859
25	1975176
26	5673279
27	16320250
28	47013406
29	135599456
30	391550002
31	1131788538
32	3274572887
33	9482475518
34	27481293566
35	79703012121
36	231318904534
37	671777453618
38	1952085567096
39	5675634863875

[1, 1, 3, 8, 22, 60, 167, 465, 1306, 3681, 10421, 29593, 84298, 240705, 688859, 1975176, 5673279, 16320250, 47013406, 135599456, 391550002, 1131788538, 3274572887, 9482475518, 27481293566, 79703012121, 231318904534, 671777453618, 1952085567096, 5675634863875]

cp's OEIS Frontend

A318906 Number of n-node rooted trees in which ten equals the maximal number of nodes in paths starting at a leaf and ending at the first branching node or at the root.

Table of values

List of values