A180013 - cp's OEIS frontend

A180013 Triangular array read by rows: T(n,k) = number of fixed points in the permutations of {1,2,...,n} that have exactly k cycles; n>=1, 1<=k<=n.

n	a(n)
1	1
2	0
3	2
4	0
5	3
6	3
7	0
8	8
9	12
10	4
11	0
12	30
13	55
14	30
15	5
16	0
17	144
18	300
19	210
20	60
21	6
22	0
23	840
24	1918
25	1575
26	595
27	105
28	7
29	0
30	5760
31	14112
32	12992
33	5880
34	1400
35	168
36	8
37	0
38	45360
39	117612
40	118188
41	60921
42	17640
43	2898
44	252
45	9
46	0
47	403200
48	1095840
49	1181240
50	672840
51	224490
52	45360
53	5460
54	360
55	10

[1, 0, 2, 0, 3, 3, 0, 8, 12, 4, 0, 30, 55, 30, 5, 0, 144, 300, 210, 60, 6, 0, 840, 1918, 1575, 595, 105, 7, 0, 5760, 14112, 12992, 5880, 1400, 168, 8, 0, 45360, 117612, 118188, 60921, 17640, 2898, 252, 9, 0, 403200, 1095840, 1181240, 672840, 224490, 45360, 5460, 360, 10]

cp's OEIS Frontend

A180013 Triangular array read by rows: T(n,k) = number of fixed points in the permutations of {1,2,...,n} that have exactly k cycles; n>=1, 1<=k<=n.

Table of values

List of values