A285849 - cp's OEIS frontend

A285849 Number T(n,k) of permutations of [n] with k ordered cycles such that equal-sized cycles are ordered with increasing least elements; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	0
7	2
8	6
9	1
10	0
11	6
12	19
13	18
14	1
15	0
16	24
17	100
18	105
19	40
20	1
21	0
22	120
23	508
24	1005
25	430
26	75
27	1
28	0
29	720
30	3528
31	6762
32	6300
33	1400
34	126
35	1
36	0
37	5040
38	24876
39	61572
40	62601
41	28700
42	3822
43	196
44	1
45	0
46	40320
47	219168
48	558548
49	706608
50	431445
51	105336
52	9114
53	288
54	1

[1, 0, 1, 0, 1, 1, 0, 2, 6, 1, 0, 6, 19, 18, 1, 0, 24, 100, 105, 40, 1, 0, 120, 508, 1005, 430, 75, 1, 0, 720, 3528, 6762, 6300, 1400, 126, 1, 0, 5040, 24876, 61572, 62601, 28700, 3822, 196, 1, 0, 40320, 219168, 558548, 706608, 431445, 105336, 9114, 288, 1]

cp's OEIS Frontend

A285849 Number T(n,k) of permutations of [n] with k ordered cycles such that equal-sized cycles are ordered with increasing least elements; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

List of values