A066313 - cp's OEIS frontend

A066313 Number of aperiodic necklaces with n red or blue beads such that two necklaces are equivalent under the operation of simultaneously turning the necklace over and switching the two colors.

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	6
7	9
8	18
9	28
10	57
11	93
12	181
13	315
14	612
15	1091
16	2100
17	3855
18	7392
19	13797
20	26436
21	49929
22	95790
23	182361
24	350440
25	671088
26	1292445
27	2485504
28	4797261
29	9256395
30	17903316
31	34636833
32	67124160
33	130150493
34	252675975
35	490853403
36	954498874
37	1857283155
38	3616938738

[1, 1, 1, 2, 3, 6, 9, 18, 28, 57, 93, 181, 315, 612, 1091, 2100, 3855, 7392, 13797, 26436, 49929, 95790, 182361, 350440, 671088, 1292445, 2485504, 4797261, 9256395, 17903316, 34636833, 67124160, 130150493, 252675975, 490853403, 954498874, 1857283155, 3616938738]

cp's OEIS Frontend

A066313 Number of aperiodic necklaces with n red or blue beads such that two necklaces are equivalent under the operation of simultaneously turning the necklace over and switching the two colors.

Table of values

List of values