A127682 - cp's OEIS frontend

A127682 Number of non-isomorphic (i.e., defined up to a rotation and a reflection) maximal independent sets of the n-cycle graph having at least one symmetry axis. Also: Number of cyclic and palindromic compositions of n in which each term is either 2 or 3.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	2
10	3
11	2
12	4
13	3
14	5
15	4
16	7
17	5
18	9
19	7
20	12
21	9
22	16
23	12
24	21
25	16
26	28
27	21
28	37
29	28
30	49
31	37
32	65
33	49
34	86
35	65
36	114
37	86
38	151
39	114
40	200
41	151
42	265
43	200
44	351
45	265
46	465
47	351
48	616
49	465
50	816
51	616
52	1081
53	816
54	1432
55	1081
56	1897
57	1432
58	2513
59	1897
60	3329
61	2513
62	4410
63	3329

[0, 1, 1, 1, 1, 2, 1, 2, 2, 3, 2, 4, 3, 5, 4, 7, 5, 9, 7, 12, 9, 16, 12, 21, 16, 28, 21, 37, 28, 49, 37, 65, 49, 86, 65, 114, 86, 151, 114, 200, 151, 265, 200, 351, 265, 465, 351, 616, 465, 816, 616, 1081, 816, 1432, 1081, 1897, 1432, 2513, 1897, 3329, 2513, 4410, 3329]

cp's OEIS Frontend

A127682 Number of non-isomorphic (i.e., defined up to a rotation and a reflection) maximal independent sets of the n-cycle graph having at least one symmetry axis. Also: Number of cyclic and palindromic compositions of n in which each term is either 2 or 3.

Table of values

List of values