A136394 - cp's OEIS frontend

A136394 Triangle read by rows: T(n,k) is the number of permutations of an n-set having k cycles of size > 1 (0<=k<=floor(n/2)).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	5
6	1
7	20
8	3
9	1
10	84
11	35
12	1
13	409
14	295
15	15
16	1
17	2365
18	2359
19	315
20	1
21	16064
22	19670
23	4480
24	105
25	1
26	125664
27	177078
28	56672
29	3465
30	1
31	1112073
32	1738326
33	703430
34	74025
35	945
36	1
37	10976173
38	18607446
39	8941790
40	1346345
41	45045
42	1
43	119481284
44	216400569
45	118685336

[1, 1, 1, 1, 1, 5, 1, 20, 3, 1, 84, 35, 1, 409, 295, 15, 1, 2365, 2359, 315, 1, 16064, 19670, 4480, 105, 1, 125664, 177078, 56672, 3465, 1, 1112073, 1738326, 703430, 74025, 945, 1, 10976173, 18607446, 8941790, 1346345, 45045, 1, 119481284, 216400569, 118685336]

cp's OEIS Frontend

A136394 Triangle read by rows: T(n,k) is the number of permutations of an n-set having k cycles of size > 1 (0<=k<=floor(n/2)).

Table of values

List of values