A033185 - cp's OEIS frontend

A033185 Rooted tree triangle read by rows: a(n,k) = number of forests with n nodes and k rooted trees.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	4
8	3
9	1
10	1
11	9
12	6
13	3
14	1
15	1
16	20
17	16
18	7
19	3
20	1
21	1
22	48
23	37
24	18
25	7
26	3
27	1
28	1
29	115
30	96
31	44
32	19
33	7
34	3
35	1
36	1
37	286
38	239
39	117
40	46
41	19
42	7
43	3
44	1
45	1
46	719
47	622
48	299
49	124
50	47
51	19
52	7
53	3
54	1
55	1
56	1842
57	1607
58	793
59	320
60	126
61	47
62	19
63	7
64	3
65	1
66	1
67	4766
68	4235
69	2095
70	858
71	327
72	127
73	47
74	19
75	7
76	3
77	1
78	1

[1, 1, 1, 2, 1, 1, 4, 3, 1, 1, 9, 6, 3, 1, 1, 20, 16, 7, 3, 1, 1, 48, 37, 18, 7, 3, 1, 1, 115, 96, 44, 19, 7, 3, 1, 1, 286, 239, 117, 46, 19, 7, 3, 1, 1, 719, 622, 299, 124, 47, 19, 7, 3, 1, 1, 1842, 1607, 793, 320, 126, 47, 19, 7, 3, 1, 1, 4766, 4235, 2095, 858, 327, 127, 47, 19, 7, 3, 1, 1]

cp's OEIS Frontend

A033185 Rooted tree triangle read by rows: a(n,k) = number of forests with n nodes and k rooted trees.

Table of values

List of values