A238415 - cp's OEIS frontend

A238415 Triangle read by rows: T(n,k) is the number of trees with n vertices having k branching vertices (n>=2, 0<=k<=floor(n/2) - 1).

n	a(n)
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	4
10	1
11	1
12	7
13	3
14	1
15	11
16	10
17	1
18	1
19	17
20	24
21	5
22	1
23	25
24	56
25	22
26	2
27	1
28	36
29	114
30	74
31	10
32	1
33	50
34	224
35	219
36	55
37	2
38	1
39	70
40	411
41	576
42	224
43	19
44	1
45	94
46	733
47	1394
48	807
49	126
50	4
51	1
52	127
53	1252
54	3150
55	2536
56	637
57	38
58	1
59	168
60	2091
61	6733
62	7305
63	2711
64	305
65	6

[1, 1, 1, 1, 1, 2, 1, 4, 1, 1, 7, 3, 1, 11, 10, 1, 1, 17, 24, 5, 1, 25, 56, 22, 2, 1, 36, 114, 74, 10, 1, 50, 224, 219, 55, 2, 1, 70, 411, 576, 224, 19, 1, 94, 733, 1394, 807, 126, 4, 1, 127, 1252, 3150, 2536, 637, 38, 1, 168, 2091, 6733, 7305, 2711, 305, 6]

cp's OEIS Frontend

A238415 Triangle read by rows: T(n,k) is the number of trees with n vertices having k branching vertices (n>=2, 0<=k<=floor(n/2) - 1).

Table of values

List of values