A327734 - cp's OEIS frontend

A327734 Number of n-bead bracelet structures using exactly two different colored beads that are not self-equivalent under either a nonzero rotation or reversal (turning over bracelet).

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	1
8	2
9	7
10	12
11	31
12	57
13	126
14	232
15	484
16	900
17	1800
18	3388
19	6643
20	12594
21	24457
22	46624
23	90157
24	172680
25	333498
26	641088
27	1238664
28	2388357
29	4620006
30	8931052

[0, 0, 0, 0, 0, 0, 1, 2, 7, 12, 31, 57, 126, 232, 484, 900, 1800, 3388, 6643, 12594, 24457, 46624, 90157, 172680, 333498, 641088, 1238664, 2388357, 4620006, 8931052]

cp's OEIS Frontend

A327734 Number of n-bead bracelet structures using exactly two different colored beads that are not self-equivalent under either a nonzero rotation or reversal (turning over bracelet).

Table of values

List of values