A273891 - cp's OEIS frontend

A273891 Triangle read by rows: T(n,k) is the number of n-bead bracelets with exactly k different colored beads.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	4
9	6
10	3
11	1
12	6
13	18
14	24
15	12
16	1
17	11
18	56
19	136
20	150
21	60
22	1
23	16
24	147
25	612
26	1200
27	1080
28	360
29	1
30	28
31	411
32	2619
33	7905
34	11970
35	8820
36	2520
37	1
38	44
39	1084
40	10480
41	46400
42	105840
43	129360
44	80640
45	20160
46	1
47	76
48	2979
49	41388
50	255636
51	821952
52	1481760
53	1512000
54	816480
55	181440

[1, 1, 1, 1, 2, 1, 1, 4, 6, 3, 1, 6, 18, 24, 12, 1, 11, 56, 136, 150, 60, 1, 16, 147, 612, 1200, 1080, 360, 1, 28, 411, 2619, 7905, 11970, 8820, 2520, 1, 44, 1084, 10480, 46400, 105840, 129360, 80640, 20160, 1, 76, 2979, 41388, 255636, 821952, 1481760, 1512000, 816480, 181440]

cp's OEIS Frontend

A273891 Triangle read by rows: T(n,k) is the number of n-bead bracelets with exactly k different colored beads.

Table of values

List of values