A206429 - cp's OEIS frontend

A206429 Triangular array read by rows. T(n,k) is the number of rooted labeled trees on n nodes such that the root node has degree k. n>=2, 1<=k<=n-1.

n	a(n)
2	2
3	6
4	3
5	36
6	24
7	4
8	320
9	240
10	60
11	5
12	3750
13	3000
14	900
15	120
16	6
17	54432
18	45360
19	15120
20	2520
21	210
22	7
23	941192
24	806736
25	288120
26	54880
27	5880
28	336
29	8
30	18874368
31	16515072
32	6193152
33	1290240
34	161280
35	12096
36	504
37	9
38	430467210
39	382637520
40	148803480
41	33067440
42	4592700
43	408240
44	22680
45	720

[2, 6, 3, 36, 24, 4, 320, 240, 60, 5, 3750, 3000, 900, 120, 6, 54432, 45360, 15120, 2520, 210, 7, 941192, 806736, 288120, 54880, 5880, 336, 8, 18874368, 16515072, 6193152, 1290240, 161280, 12096, 504, 9, 430467210, 382637520, 148803480, 33067440, 4592700, 408240, 22680, 720]

cp's OEIS Frontend

A206429 Triangular array read by rows. T(n,k) is the number of rooted labeled trees on n nodes such that the root node has degree k. n>=2, 1<=k<=n-1.

Table of values

List of values