A320647 - cp's OEIS frontend

A320647 Triangle read by rows: T(n,k) is the number of chiral pairs of cycles of length n (1) with a color pattern of exactly k colors or equivalently (2) partitioned into k nonempty subsets.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	4
19	2
20	0
21	0
22	0
23	1
24	12
25	17
26	4
27	0
28	0
29	0
30	2
31	44
32	84
33	51
34	9
35	0
36	0
37	0
38	7
39	137
40	388
41	339
42	125
43	15
44	0
45	0
46	0
47	12
48	408
49	1586
50	2010
51	1054
52	258
53	24
54	0
55	0
56	0
57	31
58	1190
59	6405
60	10900
61	7928
62	2761
63	490
64	35
65	0
66	0
67	0
68	58
69	3416
70	24927
71	56700
72	54383
73	25680
74	6392
75	859
76	51
77	0
78	0
79	0
80	126
81	9730
82	96404
83	286888
84	356594
85	218246
86	72284
87	13472
88	1420
89	68
90	0
91	0

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 2, 0, 0, 0, 1, 12, 17, 4, 0, 0, 0, 2, 44, 84, 51, 9, 0, 0, 0, 7, 137, 388, 339, 125, 15, 0, 0, 0, 12, 408, 1586, 2010, 1054, 258, 24, 0, 0, 0, 31, 1190, 6405, 10900, 7928, 2761, 490, 35, 0, 0, 0, 58, 3416, 24927, 56700, 54383, 25680, 6392, 859, 51, 0, 0, 0, 126, 9730, 96404, 286888, 356594, 218246, 72284, 13472, 1420, 68, 0, 0]

cp's OEIS Frontend

A320647 Triangle read by rows: T(n,k) is the number of chiral pairs of cycles of length n (1) with a color pattern of exactly k colors or equivalently (2) partitioned into k nonempty subsets.

Table of values

List of values