A045678 - cp's OEIS frontend

A045678 Number of 2n-bead balanced binary necklaces which are equivalent to their reversed complement, but not equivalent to their reverse and complement.

n	a(n)
0	0
1	0
2	0
3	2
4	4
5	12
6	26
7	56
8	116
9	240
10	492
11	992
12	2010
13	4032
14	8120
15	16256
16	32628
17	65280
18	130800
19	261632
20	523756
21	1047552
22	2096096
23	4192256
24	8386522
25	16773120
26	33550272
27	67100672
28	134209464
29	268419072
30	536854400
31	1073709056
32	2147450740

[0, 0, 0, 2, 4, 12, 26, 56, 116, 240, 492, 992, 2010, 4032, 8120, 16256, 32628, 65280, 130800, 261632, 523756, 1047552, 2096096, 4192256, 8386522, 16773120, 33550272, 67100672, 134209464, 268419072, 536854400, 1073709056, 2147450740]

cp's OEIS Frontend

A045678 Number of 2n-bead balanced binary necklaces which are equivalent to their reversed complement, but not equivalent to their reverse and complement.

Table of values

List of values