A327396 - cp's OEIS frontend

A327396 Triangle read by rows: T(n,k) is the number of n-bead necklace structures with beads of exactly k colors and no adjacent beads having the same color.

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	1
9	1
10	1
11	0
12	0
13	1
14	1
15	1
16	0
17	1
18	3
19	5
20	2
21	1
22	0
23	0
24	3
25	10
26	8
27	2
28	1
29	0
30	1
31	7
32	33
33	40
34	18
35	3
36	1
37	0
38	0
39	11
40	83
41	157
42	104
43	28
44	3
45	1
46	0
47	1
48	19
49	237
50	650
51	615
52	246
53	46
54	4
55	1
56	0
57	0
58	31
59	640
60	2522
61	3318
62	1857
63	495
64	65
65	4
66	1
67	0
68	1
69	63
70	1817
71	9888
72	17594
73	13311
74	4911
75	944
76	97
77	5
78	1

[0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 3, 5, 2, 1, 0, 0, 3, 10, 8, 2, 1, 0, 1, 7, 33, 40, 18, 3, 1, 0, 0, 11, 83, 157, 104, 28, 3, 1, 0, 1, 19, 237, 650, 615, 246, 46, 4, 1, 0, 0, 31, 640, 2522, 3318, 1857, 495, 65, 4, 1, 0, 1, 63, 1817, 9888, 17594, 13311, 4911, 944, 97, 5, 1]

cp's OEIS Frontend

A327396 Triangle read by rows: T(n,k) is the number of n-bead necklace structures with beads of exactly k colors and no adjacent beads having the same color.

Table of values

List of values