A245120 - cp's OEIS frontend

A245120 Number T(n,k) of n-node rooted identity trees with thinning limbs and root outdegree (branching factor) k; triangle T(n,k), n>=1, 0<=k<=max-index-of-row(n), read by rows.

n	a(n)
1	1
2	0
3	1
4	0
5	1
6	0
7	1
8	1
9	0
10	1
11	1
12	0
13	1
14	3
15	0
16	1
17	4
18	1
19	0
20	1
21	8
22	2
23	0
24	1
25	12
26	4
27	0
28	1
29	22
30	9
31	0
32	1
33	36
34	17
35	2
36	0
37	1
38	63
39	35
40	3
41	0
42	1
43	107
44	67
45	9
46	0
47	1
48	188
49	131
50	20
51	0
52	1
53	327
54	249
55	46
56	1
57	0
58	1
59	578
60	484
61	94
62	4
63	0
64	1
65	1020
66	922
67	202
68	11
69	0
70	1
71	1820
72	1775
73	412
74	28

[1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 3, 0, 1, 4, 1, 0, 1, 8, 2, 0, 1, 12, 4, 0, 1, 22, 9, 0, 1, 36, 17, 2, 0, 1, 63, 35, 3, 0, 1, 107, 67, 9, 0, 1, 188, 131, 20, 0, 1, 327, 249, 46, 1, 0, 1, 578, 484, 94, 4, 0, 1, 1020, 922, 202, 11, 0, 1, 1820, 1775, 412, 28]

cp's OEIS Frontend

A245120 Number T(n,k) of n-node rooted identity trees with thinning limbs and root outdegree (branching factor) k; triangle T(n,k), n>=1, 0<=k<=max-index-of-row(n), read by rows.

Table of values

List of values