A331106 - cp's OEIS frontend

A331106 Number of plane trees of total weight n of combinatorial class T=ZU + ZT^2/(1-T) with nodes Z of weight one and leaves U of weight three.

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	0
13	1
14	2
15	0
16	0
17	1
18	5
19	5
20	0
21	1
22	9
23	21
24	14
25	1
26	14
27	56
28	84
29	43
30	20
31	120
32	300
33	331
34	159
35	225
36	825
37	1486
38	1322
39	814
40	1925
41	5006
42	7051
43	5621
44	5434
45	14015
46	28082
47	32968
48	27092
49	39261
50	91793
51	149877
52	156858
53	152023
54	276769
55	558845
56	778920
57	786931
58	953756

[0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 2, 0, 0, 1, 5, 5, 0, 1, 9, 21, 14, 1, 14, 56, 84, 43, 20, 120, 300, 331, 159, 225, 825, 1486, 1322, 814, 1925, 5006, 7051, 5621, 5434, 14015, 28082, 32968, 27092, 39261, 91793, 149877, 156858, 152023, 276769, 558845, 778920, 786931, 953756]

cp's OEIS Frontend

A331106 Number of plane trees of total weight n of combinatorial class T=ZU + ZT^2/(1-T) with nodes Z of weight one and leaves U of weight three.

Table of values

List of values

cp's OEIS Frontend

A331106 Number of plane trees of total weight n of combinatorial class T=Z*U + Z*T^2/(1-T) with nodes Z of weight one and leaves U of weight three.

Table of values

List of values

A331106 Number of plane trees of total weight n of combinatorial class T=ZU + ZT^2/(1-T) with nodes Z of weight one and leaves U of weight three.