A094021 - cp's OEIS frontend

A094021 Triangle read by rows: T(n,k) is the number of noncrossing forests with n vertices and k components (1<=k<=n).

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	12
8	14
9	6
10	1
11	55
12	75
13	40
14	10
15	1
16	273
17	429
18	275
19	90
20	15
21	1
22	1428
23	2548
24	1911
25	770
26	175
27	21
28	1
29	7752
30	15504
31	13328
32	6370
33	1820
34	308
35	28
36	1
37	43263
38	95931
39	93024
40	51408
41	17640
42	3822
43	504
44	36
45	1
46	246675
47	600875
48	648945
49	406980
50	162792
51	42840

[1, 1, 1, 3, 3, 1, 12, 14, 6, 1, 55, 75, 40, 10, 1, 273, 429, 275, 90, 15, 1, 1428, 2548, 1911, 770, 175, 21, 1, 7752, 15504, 13328, 6370, 1820, 308, 28, 1, 43263, 95931, 93024, 51408, 17640, 3822, 504, 36, 1, 246675, 600875, 648945, 406980, 162792, 42840]

cp's OEIS Frontend

A094021 Triangle read by rows: T(n,k) is the number of noncrossing forests with n vertices and k components (1<=k<=n).

Table of values

List of values