A294783 - cp's OEIS frontend

A294783 Number of trees with n bicolored nodes and f nodes of the first color. Triangle T(n,f) read by rows, 0<=f<=n.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	2
9	1
10	2
11	4
12	6
13	4
14	2
15	3
16	9
17	15
18	15
19	9
20	3
21	6
22	20
23	43
24	51
25	43
26	20
27	6
28	11
29	48
30	116
31	175
32	175
33	116
34	48
35	11
36	23
37	115
38	329
39	573
40	698
41	573
42	329
43	115
44	23
45	47
46	286
47	918
48	1866
49	2626
50	2626
51	1866
52	918
53	286
54	47
55	106
56	719
57	2609
58	5978
59	9656
60	11241
61	9656
62	5978
63	2609
64	719
65	106
66	235
67	1842

[1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 2, 4, 6, 4, 2, 3, 9, 15, 15, 9, 3, 6, 20, 43, 51, 43, 20, 6, 11, 48, 116, 175, 175, 116, 48, 11, 23, 115, 329, 573, 698, 573, 329, 115, 23, 47, 286, 918, 1866, 2626, 2626, 1866, 918, 286, 47, 106, 719, 2609, 5978, 9656, 11241, 9656, 5978, 2609, 719, 106, 235, 1842]

cp's OEIS Frontend

A294783 Number of trees with n bicolored nodes and f nodes of the first color. Triangle T(n,f) read by rows, 0<=f<=n.

Table of values

List of values