A073020 - cp's OEIS frontend

A073020 Triangle of T(n,m) = number of bracelets (necklaces than can be turned over) with m white beads and (2n-m) black ones, for 1<=m<=n.

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	3
7	1
8	4
9	5
10	8
11	1
12	5
13	8
14	16
15	16
16	1
17	6
18	12
19	29
20	38
21	50
22	1
23	7
24	16
25	47
26	79
27	126
28	133
29	1
30	8
31	21
32	72
33	147
34	280
35	375
36	440
37	1
38	9
39	27
40	104
41	252
42	561
43	912
44	1282
45	1387
46	1
47	10
48	33
49	145
50	406
51	1032
52	1980
53	3260
54	4262
55	4752
56	1
57	11
58	40
59	195
60	621
61	1782
62	3936
63	7440
64	11410

[1, 1, 2, 1, 3, 3, 1, 4, 5, 8, 1, 5, 8, 16, 16, 1, 6, 12, 29, 38, 50, 1, 7, 16, 47, 79, 126, 133, 1, 8, 21, 72, 147, 280, 375, 440, 1, 9, 27, 104, 252, 561, 912, 1282, 1387, 1, 10, 33, 145, 406, 1032, 1980, 3260, 4262, 4752, 1, 11, 40, 195, 621, 1782, 3936, 7440, 11410]

cp's OEIS Frontend

A073020 Triangle of T(n,m) = number of bracelets (necklaces than can be turned over) with m white beads and (2n-m) black ones, for 1<=m<=n.

Table of values

List of values