A045680 - cp's OEIS frontend

A045680 Number of 2n-bead balanced binary necklaces of fundamental period 2n equivalent to reverse.

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	5
6	17
7	19
8	64
9	68
10	245
11	251
12	900
13	923
14	3411
15	3425
16	12800
17	12869
18	48532
19	48619
20	184500
21	184735
22	705179
23	705431
24	2703168
25	2704150
26	10399675
27	10400530
28	40113164
29	40116599
30	155113825
31	155117519
32	601067520
33	601080137
34	2333593349

[1, 1, 1, 1, 4, 5, 17, 19, 64, 68, 245, 251, 900, 923, 3411, 3425, 12800, 12869, 48532, 48619, 184500, 184735, 705179, 705431, 2703168, 2704150, 10399675, 10400530, 40113164, 40116599, 155113825, 155117519, 601067520, 601080137, 2333593349]

cp's OEIS Frontend

A045680 Number of 2n-bead balanced binary necklaces of fundamental period 2n equivalent to reverse.

Table of values

List of values