A213940 - cp's OEIS frontend

A213940 Triangle with entry a(n,m) giving the number of bracelets of n beads (dihedral D_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	1
7	1
8	3
9	2
10	3
11	1
12	3
13	6
14	6
15	12
16	1
17	7
18	20
19	26
20	30
21	60
22	1
23	8
24	40
25	93
26	150
27	180
28	360
29	1
30	18
31	106
32	424
33	633
34	1050
35	1260
36	2520
37	1
38	22
39	304
40	1180
41	3260
42	5040
43	8400
44	10080
45	20160
46	1
47	46
48	731
49	4844
50	16212
51	29244
52	45360
53	75600
54	90720
55	181440

[1, 1, 1, 1, 1, 1, 1, 3, 2, 3, 1, 3, 6, 6, 12, 1, 7, 20, 26, 30, 60, 1, 8, 40, 93, 150, 180, 360, 1, 18, 106, 424, 633, 1050, 1260, 2520, 1, 22, 304, 1180, 3260, 5040, 8400, 10080, 20160, 1, 46, 731, 4844, 16212, 29244, 45360, 75600, 90720, 181440]

cp's OEIS Frontend

A213940 Triangle with entry a(n,m) giving the number of bracelets of n beads (dihedral D_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