A331233 - cp's OEIS frontend

A331233 Number of unlabeled rooted trees with n vertices and more than two branches of the root.

n	a(n)
1	0
2	0
3	0
4	1
5	2
6	5
7	12
8	30
9	75
10	194
11	501
12	1317
13	3485
14	9302
15	24976
16	67500
17	183290
18	500094
19	1369939
20	3766831
21	10391722
22	28756022
23	79794407
24	221987348
25	619019808
26	1729924110
27	4844242273
28	13590663071
29	38195831829
30	107523305566
31	303148601795
32	855922155734
33	2419923253795

[0, 0, 0, 1, 2, 5, 12, 30, 75, 194, 501, 1317, 3485, 9302, 24976, 67500, 183290, 500094, 1369939, 3766831, 10391722, 28756022, 79794407, 221987348, 619019808, 1729924110, 4844242273, 13590663071, 38195831829, 107523305566, 303148601795, 855922155734, 2419923253795]

cp's OEIS Frontend

A331233 Number of unlabeled rooted trees with n vertices and more than two branches of the root.

Table of values

List of values