A324173 - cp's OEIS frontend

A324173 Regular triangle read by rows where T(n,k) is the number of set partitions of {1,...,n} with k topologically connected components.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	0
7	1
8	3
9	1
10	0
11	2
12	6
13	6
14	1
15	0
16	6
17	15
18	20
19	10
20	1
21	0
22	21
23	51
24	65
25	50
26	15
27	1
28	0
29	85
30	203
31	252
32	210
33	105
34	21
35	1
36	0
37	385
38	912
39	1120
40	938
41	560
42	196
43	28
44	1
45	0
46	1907
47	4527
48	5520
49	4620
50	2898
51	1302
52	336
53	36
54	1
55	0
56	10205
57	24370
58	29700
59	24780
60	15792
61	7812
62	2730
63	540
64	45
65	1

[1, 0, 1, 0, 1, 1, 0, 1, 3, 1, 0, 2, 6, 6, 1, 0, 6, 15, 20, 10, 1, 0, 21, 51, 65, 50, 15, 1, 0, 85, 203, 252, 210, 105, 21, 1, 0, 385, 912, 1120, 938, 560, 196, 28, 1, 0, 1907, 4527, 5520, 4620, 2898, 1302, 336, 36, 1, 0, 10205, 24370, 29700, 24780, 15792, 7812, 2730, 540, 45, 1]

cp's OEIS Frontend

A324173 Regular triangle read by rows where T(n,k) is the number of set partitions of {1,...,n} with k topologically connected components.

Table of values

List of values