A337089 - cp's OEIS frontend

A337089 Number of rooted trees of n vertices in which all leaves are at even depths (distances down from the root).

n	a(n)
0	0
1	1
2	0
3	1
4	1
5	3
6	4
7	10
8	17
9	38
10	73
11	158
12	324
13	700
14	1483
15	3224
16	6979
17	15300
18	33571
19	74219
20	164476
21	366302
22	817999
23	1833280
24	4119266
25	9281867
26	20962757
27	47453359
28	107637494
29	244630449
30	556964670
31	1270218355
32	2901393727
33	6637071449
34	15203568955
35	34872363374

[0, 1, 0, 1, 1, 3, 4, 10, 17, 38, 73, 158, 324, 700, 1483, 3224, 6979, 15300, 33571, 74219, 164476, 366302, 817999, 1833280, 4119266, 9281867, 20962757, 47453359, 107637494, 244630449, 556964670, 1270218355, 2901393727, 6637071449, 15203568955, 34872363374]

cp's OEIS Frontend

A337089 Number of rooted trees of n vertices in which all leaves are at even depths (distances down from the root).

Table of values

List of values