A208777 - cp's OEIS frontend

A208777 T(n,k) is the number of n-bead necklaces labeled with numbers 1..k not allowing reversal, with no adjacent beads differing by more than 1.

n	a(n)
1	1
2	2
3	1
4	3
5	3
6	1
7	4
8	5
9	4
10	1
11	5
12	7
13	7
14	6
15	1
16	6
17	9
18	10
19	12
20	8
21	1
22	7
23	11
24	13
25	18
26	19
27	14
28	1
29	8
30	13
31	16
32	24
33	30
34	39
35	20
36	1
37	9
38	15
39	19
40	30
41	41
42	65
43	71
44	36
45	1
46	10
47	17
48	22
49	36
50	52
51	91
52	128
53	152
54	60
55	1
56	11
57	19
58	25
59	42
60	63
61	117
62	185
63	293
64	315
65	108
66	1
67	12
68	21
69	28
70	48
71	74
72	143
73	242
74	435
75	658
76	685

[1, 2, 1, 3, 3, 1, 4, 5, 4, 1, 5, 7, 7, 6, 1, 6, 9, 10, 12, 8, 1, 7, 11, 13, 18, 19, 14, 1, 8, 13, 16, 24, 30, 39, 20, 1, 9, 15, 19, 30, 41, 65, 71, 36, 1, 10, 17, 22, 36, 52, 91, 128, 152, 60, 1, 11, 19, 25, 42, 63, 117, 185, 293, 315, 108, 1, 12, 21, 28, 48, 74, 143, 242, 435, 658, 685]

cp's OEIS Frontend

A208777 T(n,k) is the number of n-bead necklaces labeled with numbers 1..k not allowing reversal, with no adjacent beads differing by more than 1.

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	3
5	3
6	1
7	4
8	5
9	4
10	1
11	5
12	7
13	7
14	6
15	1
16	6
17	9
18	10
19	12
20	8
21	1
22	7
23	11
24	13
25	18
26	19
27	14
28	1
29	8
30	13
31	16
32	24
33	30
34	39
35	20
36	1
37	9
38	15
39	19
40	30
41	41
42	65
43	71
44	36
45	1
46	10
47	17
48	22
49	36
50	52
51	91
52	128
53	152
54	60
55	1
56	11
57	19
58	25
59	42
60	63
61	117
62	185
63	293
64	315
65	108
66	1
67	12
68	21
69	28
70	48
71	74
72	143
73	242
74	435
75	658
76	685

n	a(n)
1	1
2	2
3	1
4	3
5	3
6	1
7	4
8	5
9	4
10	1
11	5
12	7
13	7
14	6
15	1
16	6
17	9
18	10
19	12
20	8
21	1
22	7
23	11
24	13
25	18
26	19
27	14
28	1
29	8
30	13
31	16
32	24
33	30
34	39
35	20
36	1
37	9
38	15
39	19
40	30
41	41
42	65
43	71
44	36
45	1
46	10
47	17
48	22
49	36
50	52
51	91
52	128
53	152
54	60
55	1
56	11
57	19
58	25
59	42
60	63
61	117
62	185
63	293
64	315
65	108
66	1
67	12
68	21
69	28
70	48
71	74
72	143
73	242
74	435
75	658
76	685

n	a(n)
1	1
2	2
3	1
4	3
5	3
6	1
7	4
8	5
9	4
10	1
11	5
12	7
13	7
14	6
15	1
16	6
17	9
18	10
19	12
20	8
21	1
22	7
23	11
24	13
25	18
26	19
27	14
28	1
29	8
30	13
31	16
32	24
33	30
34	39
35	20
36	1
37	9
38	15
39	19
40	30
41	41
42	65
43	71
44	36
45	1
46	10
47	17
48	22
49	36
50	52
51	91
52	128
53	152
54	60
55	1
56	11
57	19
58	25
59	42
60	63
61	117
62	185
63	293
64	315
65	108
66	1
67	12
68	21
69	28
70	48
71	74
72	143
73	242
74	435
75	658
76	685