A213934 - cp's OEIS frontend

A213934 Triangle with entry a(n,m) giving the number of necklaces of n beads (C_N symmetry) with n colors available for each bead, but only m distinct fixed colors, say c[1],...,c[m], are present, with m from {1,...,n} and n>=1.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	3
9	3
10	6
11	1
12	3
13	10
14	12
15	24
16	1
17	8
18	31
19	50
20	60
21	120
22	1
23	9
24	71
25	180
26	300
27	360
28	720
29	1
30	22
31	187
32	815
33	1260
34	2100
35	2520
36	5040
37	1
38	29
39	574
40	2324
41	6496
42	10080
43	16800
44	20160
45	40320
46	1
47	66
48	1373
49	9570
50	32268
51	58464
52	90720
53	151200
54	181440
55	362880

[1, 1, 1, 1, 1, 2, 1, 3, 3, 6, 1, 3, 10, 12, 24, 1, 8, 31, 50, 60, 120, 1, 9, 71, 180, 300, 360, 720, 1, 22, 187, 815, 1260, 2100, 2520, 5040, 1, 29, 574, 2324, 6496, 10080, 16800, 20160, 40320, 1, 66, 1373, 9570, 32268, 58464, 90720, 151200, 181440, 362880]

cp's OEIS Frontend

A213934 Triangle with entry a(n,m) giving the number of necklaces of n beads (C_N symmetry) with n colors available for each bead, but only m distinct fixed colors, say c[1],...,c[m], are present, with m from {1,...,n} and n>=1.

Table of values

List of values