A000029 - cp's OEIS frontend

A000029 Number of necklaces with n beads of 2 colors, allowing turning over (these are also called bracelets).

n	a(n)
0	1
1	2
2	3
3	4
4	6
5	8
6	13
7	18
8	30
9	46
10	78
11	126
12	224
13	380
14	687
15	1224
16	2250
17	4112
18	7685
19	14310
20	27012
21	50964
22	96909
23	184410
24	352698
25	675188
26	1296858
27	2493726
28	4806078
29	9272780
30	17920860
31	34669602
32	67159050
33	130216124
34	252745368
35	490984488
36	954637558
37	1857545300

[1, 2, 3, 4, 6, 8, 13, 18, 30, 46, 78, 126, 224, 380, 687, 1224, 2250, 4112, 7685, 14310, 27012, 50964, 96909, 184410, 352698, 675188, 1296858, 2493726, 4806078, 9272780, 17920860, 34669602, 67159050, 130216124, 252745368, 490984488, 954637558, 1857545300]

cp's OEIS Frontend

A000029 Number of necklaces with n beads of 2 colors, allowing turning over (these are also called bracelets).

Table of values

List of values