A087854 - cp's OEIS frontend

A087854 Triangle read by rows: T(n,k) is the number of n-bead necklaces with exactly k different colored beads.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	1
8	4
9	9
10	6
11	1
12	6
13	30
14	48
15	24
16	1
17	12
18	91
19	260
20	300
21	120
22	1
23	18
24	258
25	1200
26	2400
27	2160
28	720
29	1
30	34
31	729
32	5106
33	15750
34	23940
35	17640
36	5040
37	1
38	58
39	2018
40	20720
41	92680
42	211680
43	258720
44	161280
45	40320
46	1
47	106
48	5613
49	81876
50	510312
51	1643544
52	2963520
53	3024000
54	1632960
55	362880

[1, 1, 1, 1, 2, 2, 1, 4, 9, 6, 1, 6, 30, 48, 24, 1, 12, 91, 260, 300, 120, 1, 18, 258, 1200, 2400, 2160, 720, 1, 34, 729, 5106, 15750, 23940, 17640, 5040, 1, 58, 2018, 20720, 92680, 211680, 258720, 161280, 40320, 1, 106, 5613, 81876, 510312, 1643544, 2963520, 3024000, 1632960, 362880]

cp's OEIS Frontend

A087854 Triangle read by rows: T(n,k) is the number of n-bead necklaces with exactly k different colored beads.

Table of values

List of values