A208535 - cp's OEIS frontend

A208535 Square array read by descending antidiagonals: T(n,k) is the number of n-bead necklaces of k colors not allowing reversal, with no adjacent beads having the same color (n, k >= 1).

n	a(n)
1	1
2	2
3	0
4	3
5	1
6	0
7	4
8	3
9	0
10	0
11	5
12	6
13	2
14	1
15	0
16	6
17	10
18	8
19	6
20	0
21	0
22	7
23	15
24	20
25	24
26	6
27	1
28	0
29	8
30	21
31	40
32	70
33	48
34	14
35	0
36	0
37	9
38	28
39	70
40	165
41	204
42	130
43	18
44	1
45	0
46	10
47	36
48	112
49	336
50	624
51	700
52	312
53	36
54	0
55	0
56	11
57	45
58	168
59	616
60	1554
61	2635
62	2340
63	834
64	58
65	1
66	0
67	12
68	55
69	240
70	1044
71	3360
72	7826
73	11160

[1, 2, 0, 3, 1, 0, 4, 3, 0, 0, 5, 6, 2, 1, 0, 6, 10, 8, 6, 0, 0, 7, 15, 20, 24, 6, 1, 0, 8, 21, 40, 70, 48, 14, 0, 0, 9, 28, 70, 165, 204, 130, 18, 1, 0, 10, 36, 112, 336, 624, 700, 312, 36, 0, 0, 11, 45, 168, 616, 1554, 2635, 2340, 834, 58, 1, 0, 12, 55, 240, 1044, 3360, 7826, 11160]

cp's OEIS Frontend

A208535 Square array read by descending antidiagonals: T(n,k) is the number of n-bead necklaces of k colors not allowing reversal, with no adjacent beads having the same color (n, k >= 1).

Table of values

List of values