A242249 - cp's OEIS frontend

A242249 Number A(n,k) of rooted trees with n nodes and k-colored non-root nodes; square array A(n,k), n>=0, k>=0, read by antidiagonals.

n	a(n)
0	0
1	0
2	1
3	0
4	1
5	0
6	0
7	1
8	1
9	0
10	0
11	1
12	2
13	2
14	0
15	0
16	1
17	3
18	7
19	4
20	0
21	0
22	1
23	4
24	15
25	26
26	9
27	0
28	0
29	1
30	5
31	26
32	82
33	107
34	20
35	0
36	0
37	1
38	6
39	40
40	188
41	495
42	458
43	48
44	0
45	0
46	1
47	7
48	57
49	360
50	1499
51	3144
52	2058
53	115
54	0
55	0
56	1
57	8
58	77
59	614
60	3570
61	12628
62	20875
63	9498
64	286
65	0
66	0
67	1
68	9
69	100
70	966
71	7284
72	37476
73	111064
74	142773
75	44947
76	719
77	0

[0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 2, 2, 0, 0, 1, 3, 7, 4, 0, 0, 1, 4, 15, 26, 9, 0, 0, 1, 5, 26, 82, 107, 20, 0, 0, 1, 6, 40, 188, 495, 458, 48, 0, 0, 1, 7, 57, 360, 1499, 3144, 2058, 115, 0, 0, 1, 8, 77, 614, 3570, 12628, 20875, 9498, 286, 0, 0, 1, 9, 100, 966, 7284, 37476, 111064, 142773, 44947, 719, 0]

cp's OEIS Frontend

A242249 Number A(n,k) of rooted trees with n nodes and k-colored non-root nodes; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

List of values