A181897 - cp's OEIS frontend

A181897 Triangle of refined rencontres numbers: T(n,k) is the number of permutations of n elements with cycle type k (k-th integer partition, defined by A194602).

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	2
7	1
8	6
9	8
10	3
11	6
12	1
13	10
14	20
15	15
16	30
17	20
18	24
19	1
20	15
21	40
22	45
23	90
24	120
25	144
26	15
27	90
28	40
29	120
30	1
31	21
32	70
33	105
34	210
35	420
36	504
37	105
38	630
39	280
40	840
41	210
42	504
43	420
44	720
45	1
46	28
47	112
48	210
49	420
50	1120
51	1344
52	420
53	2520
54	1120
55	3360
56	1680
57	4032

[1, 1, 1, 1, 3, 2, 1, 6, 8, 3, 6, 1, 10, 20, 15, 30, 20, 24, 1, 15, 40, 45, 90, 120, 144, 15, 90, 40, 120, 1, 21, 70, 105, 210, 420, 504, 105, 630, 280, 840, 210, 504, 420, 720, 1, 28, 112, 210, 420, 1120, 1344, 420, 2520, 1120, 3360, 1680, 4032]

cp's OEIS Frontend

A181897 Triangle of refined rencontres numbers: T(n,k) is the number of permutations of n elements with cycle type k (k-th integer partition, defined by A194602).

Table of values

List of values