A002076 - cp's OEIS frontend

A002076 Number of equivalence classes of base-3 necklaces of length n, where necklaces are considered equivalent under both rotations and permutations of the symbols.

n	a(n)
0	1
1	1
2	2
3	3
4	6
5	9
6	26
7	53
8	146
9	369
10	1002
11	2685
12	7434
13	20441
14	57046
15	159451
16	448686
17	1266081
18	3588002
19	10195277
20	29058526
21	83018783
22	237740670
23	682196949
24	1961331314
25	5648590737
26	16294052602
27	47071590147
28	136171497650
29	394427456121
30	1143839943618
31	3320824711205

[1, 1, 2, 3, 6, 9, 26, 53, 146, 369, 1002, 2685, 7434, 20441, 57046, 159451, 448686, 1266081, 3588002, 10195277, 29058526, 83018783, 237740670, 682196949, 1961331314, 5648590737, 16294052602, 47071590147, 136171497650, 394427456121, 1143839943618, 3320824711205]

cp's OEIS Frontend

A002076 Number of equivalence classes of base-3 necklaces of length n, where necklaces are considered equivalent under both rotations and permutations of the symbols.

Table of values

List of values