A275422 - cp's OEIS frontend

A275422 Number A(n,k) of set partitions of [n] such that k is a multiple of each block size; square array A(n,k), n>=0, k>=0, read by antidiagonals.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	1
9	5
10	1
11	1
12	2
13	1
14	15
15	1
16	1
17	1
18	4
19	1
20	52
21	1
22	1
23	2
24	2
25	10
26	1
27	203
28	1
29	1
30	1
31	4
32	5
33	26
34	1
35	877
36	1
37	1
38	2
39	1
40	11
41	11
42	76
43	1
44	4140
45	1
46	1
47	1
48	5
49	1
50	31
51	31
52	232
53	1
54	21147
55	1
56	1
57	2
58	1
59	14
60	2
61	106
62	106
63	764
64	1
65	115975
66	1
67	1
68	1
69	4
70	1
71	46
72	7
73	372
74	337
75	2620
76	1
77	678570

[1, 1, 1, 1, 1, 2, 1, 1, 1, 5, 1, 1, 2, 1, 15, 1, 1, 1, 4, 1, 52, 1, 1, 2, 2, 10, 1, 203, 1, 1, 1, 4, 5, 26, 1, 877, 1, 1, 2, 1, 11, 11, 76, 1, 4140, 1, 1, 1, 5, 1, 31, 31, 232, 1, 21147, 1, 1, 2, 1, 14, 2, 106, 106, 764, 1, 115975, 1, 1, 1, 4, 1, 46, 7, 372, 337, 2620, 1, 678570]

cp's OEIS Frontend

A275422 Number A(n,k) of set partitions of [n] such that k is a multiple of each block size; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

List of values