A101371 - cp's OEIS frontend

A101371 Triangle read by rows: T(n,k) is the number of noncrossing trees with n edges and k leaves at level 1.

n	a(n)
0	1
1	0
2	1
3	2
4	0
5	1
6	7
7	4
8	0
9	1
10	34
11	14
12	6
13	0
14	1
15	171
16	72
17	21
18	8
19	0
20	1
21	905
22	370
23	114
24	28
25	10
26	0
27	1
28	4952
29	1995
30	597
31	160
32	35
33	12
34	0
35	1
36	27802
37	11064
38	3278
39	852
40	210
41	42
42	14
43	0
44	1
45	159254
46	62774
47	18420
48	4762
49	1135
50	264
51	49
52	16
53	0
54	1
55	927081
56	362614
57	105618
58	27104
59	6455
60	1446
61	322
62	56
63	18
64	0
65	1

[1, 0, 1, 2, 0, 1, 7, 4, 0, 1, 34, 14, 6, 0, 1, 171, 72, 21, 8, 0, 1, 905, 370, 114, 28, 10, 0, 1, 4952, 1995, 597, 160, 35, 12, 0, 1, 27802, 11064, 3278, 852, 210, 42, 14, 0, 1, 159254, 62774, 18420, 4762, 1135, 264, 49, 16, 0, 1, 927081, 362614, 105618, 27104, 6455, 1446, 322, 56, 18, 0, 1]

cp's OEIS Frontend

A101371 Triangle read by rows: T(n,k) is the number of noncrossing trees with n edges and k leaves at level 1.

Table of values

List of values