A305541 - cp's OEIS frontend

A305541 Triangle read by rows: T(n,k) is the number of chiral pairs of color loops of length n with exactly k different colors.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	3
10	3
11	0
12	0
13	12
14	24
15	12
16	0
17	1
18	35
19	124
20	150
21	60
22	0
23	2
24	111
25	588
26	1200
27	1080
28	360
29	0
30	6
31	318
32	2487
33	7845
34	11970
35	8820
36	2520
37	0
38	14
39	934
40	10240
41	46280
42	105840
43	129360
44	80640
45	20160
46	0
47	30
48	2634
49	40488
50	254676
51	821592
52	1481760
53	1512000
54	816480
55	181440
56	0
57	62
58	7503
59	158220
60	1344900
61	5873760
62	14658840
63	21772800
64	19051200
65	9072000
66	1814400

[0, 0, 0, 0, 0, 1, 0, 0, 3, 3, 0, 0, 12, 24, 12, 0, 1, 35, 124, 150, 60, 0, 2, 111, 588, 1200, 1080, 360, 0, 6, 318, 2487, 7845, 11970, 8820, 2520, 0, 14, 934, 10240, 46280, 105840, 129360, 80640, 20160, 0, 30, 2634, 40488, 254676, 821592, 1481760, 1512000, 816480, 181440, 0, 62, 7503, 158220, 1344900, 5873760, 14658840, 21772800, 19051200, 9072000, 1814400]

cp's OEIS Frontend

A305541 Triangle read by rows: T(n,k) is the number of chiral pairs of color loops of length n with exactly k different colors.

Table of values

List of values