A227774 - cp's OEIS frontend

A227774 Triangular array read by rows: T(n,k) is the number of rooted identity trees with n nodes having exactly k subtrees from the root.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	3
9	3
10	6
11	5
12	1
13	12
14	11
15	2
16	25
17	22
18	5
19	52
20	49
21	12
22	113
23	104
24	28
25	2
26	247
27	232
28	65
29	4
30	548
31	513
32	152
33	13
34	1226
35	1159
36	351
37	34
38	2770
39	2619
40	818
41	91
42	1
43	6299
44	5989
45	1907
46	225
47	6
48	14426
49	13734
50	4460
51	571
52	18
53	33209
54	31729
55	10453
56	1403
57	57
58	76851

[1, 1, 1, 1, 1, 2, 1, 3, 3, 6, 5, 1, 12, 11, 2, 25, 22, 5, 52, 49, 12, 113, 104, 28, 2, 247, 232, 65, 4, 548, 513, 152, 13, 1226, 1159, 351, 34, 2770, 2619, 818, 91, 1, 6299, 5989, 1907, 225, 6, 14426, 13734, 4460, 571, 18, 33209, 31729, 10453, 1403, 57, 76851]

cp's OEIS Frontend

A227774 Triangular array read by rows: T(n,k) is the number of rooted identity trees with n nodes having exactly k subtrees from the root.

Table of values

List of values