A211357 - cp's OEIS frontend

A211357 Triangle read by rows: T(n,k) is the number of noncrossing partitions up to rotation of an n-set that contain k singleton blocks.

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	1
7	1
8	0
9	1
10	2
11	1
12	2
13	0
14	1
15	2
16	3
17	2
18	2
19	0
20	1
21	5
22	6
23	9
24	4
25	3
26	0
27	1
28	6
29	15
30	18
31	15
32	5
33	3
34	0
35	1
36	15
37	36
38	56
39	42
40	29
41	7
42	4
43	0
44	1
45	28
46	91
47	144
48	142
49	84
50	42
51	10
52	4
53	0
54	1
55	67
56	232
57	419
58	432
59	322
60	152
61	66
62	12
63	5
64	0
65	1
66	145
67	603
68	1160
69	1365
70	1080
71	630
72	252
73	90
74	15
75	5
76	0
77	1

[1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 2, 1, 2, 0, 1, 2, 3, 2, 2, 0, 1, 5, 6, 9, 4, 3, 0, 1, 6, 15, 18, 15, 5, 3, 0, 1, 15, 36, 56, 42, 29, 7, 4, 0, 1, 28, 91, 144, 142, 84, 42, 10, 4, 0, 1, 67, 232, 419, 432, 322, 152, 66, 12, 5, 0, 1, 145, 603, 1160, 1365, 1080, 630, 252, 90, 15, 5, 0, 1]

cp's OEIS Frontend

A211357 Triangle read by rows: T(n,k) is the number of noncrossing partitions up to rotation of an n-set that contain k singleton blocks.

Table of values

List of values