A350248 - cp's OEIS frontend

A350248 Triangle read by rows: T(n,k) is the number of noncrossing partitions of an n-set into k blocks of size 3 or more, n >= 0, 0 <= k <= floor(n/3).

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	1
7	0
8	1
9	0
10	1
11	3
12	0
13	1
14	7
15	0
16	1
17	12
18	0
19	1
20	18
21	12
22	0
23	1
24	25
25	45
26	0
27	1
28	33
29	110
30	0
31	1
32	42
33	220
34	55
35	0
36	1
37	52
38	390
39	286
40	0
41	1
42	63
43	637
44	910
45	0
46	1
47	75
48	980
49	2275
50	273
51	0
52	1
53	88
54	1440
55	4900
56	1820
57	0
58	1
59	102
60	2040
61	9520
62	7140
63	0
64	1
65	117
66	2805
67	17136
68	21420
69	1428

[1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 3, 0, 1, 7, 0, 1, 12, 0, 1, 18, 12, 0, 1, 25, 45, 0, 1, 33, 110, 0, 1, 42, 220, 55, 0, 1, 52, 390, 286, 0, 1, 63, 637, 910, 0, 1, 75, 980, 2275, 273, 0, 1, 88, 1440, 4900, 1820, 0, 1, 102, 2040, 9520, 7140, 0, 1, 117, 2805, 17136, 21420, 1428]

cp's OEIS Frontend

A350248 Triangle read by rows: T(n,k) is the number of noncrossing partitions of an n-set into k blocks of size 3 or more, n >= 0, 0 <= k <= floor(n/3).

Table of values

List of values