A337090 - cp's OEIS frontend

A337090 Number of rooted trees of n vertices in which all leaves are at odd depths (distances down from the root).

n	a(n)
0	0
1	0
2	1
3	1
4	2
5	3
6	6
7	11
8	22
9	43
10	89
11	183
12	384
13	812
14	1738
15	3742
16	8125
17	17735
18	38941
19	85898
20	190328
21	423320
22	944933
23	2115941
24	4752138
25	10701191
26	24157460
27	54658278
28	123930534
29	281546031
30	640785749
31	1460879893
32	3335858947
33	7628666743
34	17470228499
35	40060975624

[0, 0, 1, 1, 2, 3, 6, 11, 22, 43, 89, 183, 384, 812, 1738, 3742, 8125, 17735, 38941, 85898, 190328, 423320, 944933, 2115941, 4752138, 10701191, 24157460, 54658278, 123930534, 281546031, 640785749, 1460879893, 3335858947, 7628666743, 17470228499, 40060975624]

cp's OEIS Frontend

A337090 Number of rooted trees of n vertices in which all leaves are at odd depths (distances down from the root).

Table of values

List of values