A244458 - cp's OEIS frontend

A244458 Number of unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 4.

n	a(n)
5	1
6	0
7	0
8	0
9	1
10	2
11	2
12	2
13	4
14	7
15	12
16	16
17	25
18	38
19	61
20	94
21	147
22	227
23	356
24	550
25	862
26	1345
27	2113
28	3299
29	5168
30	8091
31	12721
32	19981
33	31421
34	49384
35	77761
36	122487
37	193151
38	304623
39	480852
40	759367
41	1200150
42	1897594
43	3002329
44	4752436
45	7527155
46	11927290
47	18909719
48	29993579

[1, 0, 0, 0, 1, 2, 2, 2, 4, 7, 12, 16, 25, 38, 61, 94, 147, 227, 356, 550, 862, 1345, 2113, 3299, 5168, 8091, 12721, 19981, 31421, 49384, 77761, 122487, 193151, 304623, 480852, 759367, 1200150, 1897594, 3002329, 4752436, 7527155, 11927290, 18909719, 29993579]

cp's OEIS Frontend

A244458 Number of unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 4.

Table of values

List of values