A255704 - cp's OEIS frontend

A255704 Number T(n,k) of n-node rooted trees in which the maximal number of nodes in paths starting at a leaf and ending at the first branching node or at the root equals k; triangle T(n,k), n>=1, 1<=k<=n, read by rows.

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	1
10	1
11	0
12	4
13	3
14	1
15	1
16	0
17	8
18	7
19	3
20	1
21	1
22	0
23	17
24	18
25	8
26	3
27	1
28	1
29	0
30	36
31	45
32	21
33	8
34	3
35	1
36	1
37	0
38	79
39	116
40	56
41	22
42	8
43	3
44	1
45	1
46	0
47	175
48	298
49	152
50	59
51	22
52	8
53	3
54	1
55	1
56	0
57	395
58	776
59	413
60	163
61	60
62	22
63	8
64	3
65	1
66	1
67	0
68	899
69	2025
70	1131
71	450
72	166
73	60
74	22
75	8
76	3
77	1
78	1

[1, 0, 1, 0, 1, 1, 0, 2, 1, 1, 0, 4, 3, 1, 1, 0, 8, 7, 3, 1, 1, 0, 17, 18, 8, 3, 1, 1, 0, 36, 45, 21, 8, 3, 1, 1, 0, 79, 116, 56, 22, 8, 3, 1, 1, 0, 175, 298, 152, 59, 22, 8, 3, 1, 1, 0, 395, 776, 413, 163, 60, 22, 8, 3, 1, 1, 0, 899, 2025, 1131, 450, 166, 60, 22, 8, 3, 1, 1]

cp's OEIS Frontend

A255704 Number T(n,k) of n-node rooted trees in which the maximal number of nodes in paths starting at a leaf and ending at the first branching node or at the root equals k; triangle T(n,k), n>=1, 1<=k<=n, read by rows.

Table of values

List of values