A213935 - cp's OEIS frontend

A213935 Triangle with entry a(n,m) giving the total number of necklaces of n beads (C_n symmetry) with n colors available for each bead, but only m distinct colors present, with m from {1, 2, ..., n} and n >= 1.

n	a(n)
1	1
2	2
3	1
4	3
5	6
6	2
7	4
8	24
9	36
10	6
11	5
12	60
13	300
14	240
15	24
16	6
17	180
18	1820
19	3900
20	1800
21	120
22	7
23	378
24	9030
25	42000
26	50400
27	15120
28	720
29	8
30	952
31	40824
32	357420
33	882000
34	670320
35	141120
36	5040
37	9
38	2088
39	169512
40	2610720
41	11677680
42	17781120
43	9313920
44	1451520
45	40320
46	10
47	4770
48	673560
49	17193960
50	128598624
51	345144240
52	355622400
53	136080000
54	16329600
55	362880

[1, 2, 1, 3, 6, 2, 4, 24, 36, 6, 5, 60, 300, 240, 24, 6, 180, 1820, 3900, 1800, 120, 7, 378, 9030, 42000, 50400, 15120, 720, 8, 952, 40824, 357420, 882000, 670320, 141120, 5040, 9, 2088, 169512, 2610720, 11677680, 17781120, 9313920, 1451520, 40320, 10, 4770, 673560, 17193960, 128598624, 345144240, 355622400, 136080000, 16329600, 362880]

cp's OEIS Frontend

A213935 Triangle with entry a(n,m) giving the total number of necklaces of n beads (C_n symmetry) with n colors available for each bead, but only m distinct colors present, with m from {1, 2, ..., n} and n >= 1.

Table of values

List of values