A320748 - cp's OEIS frontend

A320748 Array read by antidiagonals: T(n,k) is the number of color patterns (set partitions) in an unoriented cycle of length n using k or fewer colors (subsets).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	2
10	1
11	1
12	2
13	3
14	4
15	1
16	1
17	2
18	3
19	6
20	4
21	1
22	1
23	2
24	3
25	7
26	9
27	8
28	1
29	1
30	2
31	3
32	7
33	11
34	22
35	9
36	1
37	1
38	2
39	3
40	7
41	12
42	33
43	40
44	18
45	1
46	1
47	2
48	3
49	7
50	12
51	36
52	73
53	100
54	23
55	1
56	1
57	2
58	3
59	7
60	12
61	37
62	89
63	237
64	225
65	44
66	1
67	1
68	2
69	3
70	7
71	12
72	37
73	92
74	322
75	703
76	582
77	63
78	1
79	1
80	2
81	3
82	7
83	12
84	37
85	93
86	349
87	1137
88	2433
89	1464
90	122
91	1
92	1
93	2
94	3
95	7
96	12
97	37
98	93
99	353
100	1308
101	4704
102	8309
103	3960
104	190
105	1
106	1
107	2
108	3
109	7
110	12
111	37
112	93
113	354
114	1345
115	5953
116	19839
117	30108
118	10585
119	362
120	1

[1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 3, 4, 1, 1, 2, 3, 6, 4, 1, 1, 2, 3, 7, 9, 8, 1, 1, 2, 3, 7, 11, 22, 9, 1, 1, 2, 3, 7, 12, 33, 40, 18, 1, 1, 2, 3, 7, 12, 36, 73, 100, 23, 1, 1, 2, 3, 7, 12, 37, 89, 237, 225, 44, 1, 1, 2, 3, 7, 12, 37, 92, 322, 703, 582, 63, 1, 1, 2, 3, 7, 12, 37, 93, 349, 1137, 2433, 1464, 122, 1, 1, 2, 3, 7, 12, 37, 93, 353, 1308, 4704, 8309, 3960, 190, 1, 1, 2, 3, 7, 12, 37, 93, 354, 1345, 5953, 19839, 30108, 10585, 362, 1]

cp's OEIS Frontend

A320748 Array read by antidiagonals: T(n,k) is the number of color patterns (set partitions) in an unoriented cycle of length n using k or fewer colors (subsets).

Table of values

List of values