A106179 - cp's OEIS frontend

A106179 Triangle read by rows: T(n,k) is the number of series-reduced planted trees with n leaves and k internal nodes.

n	a(n)
2	1
3	1
4	1
5	1
6	2
7	2
8	1
9	3
10	5
11	3
12	1
13	4
14	10
15	12
16	6
17	1
18	5
19	16
20	29
21	28
22	11
23	1
24	6
25	24
26	57
27	84
28	66
29	23
30	1
31	7
32	33
33	99
34	192
35	231
36	157
37	46
38	1
39	8
40	44
41	157
42	382
43	615
44	634
45	373
46	98
47	1
48	9
49	56
50	234
51	682
52	1380
53	1905
54	1704
55	890
56	207
57	1
58	10
59	70
60	333
61	1133
62	2755
63	4782
64	5746
65	4554
66	2130
67	451

[1, 1, 1, 1, 2, 2, 1, 3, 5, 3, 1, 4, 10, 12, 6, 1, 5, 16, 29, 28, 11, 1, 6, 24, 57, 84, 66, 23, 1, 7, 33, 99, 192, 231, 157, 46, 1, 8, 44, 157, 382, 615, 634, 373, 98, 1, 9, 56, 234, 682, 1380, 1905, 1704, 890, 207, 1, 10, 70, 333, 1133, 2755, 4782, 5746, 4554, 2130, 451]

cp's OEIS Frontend

A106179 Triangle read by rows: T(n,k) is the number of series-reduced planted trees with n leaves and k internal nodes.

Table of values

List of values