A092582 - cp's OEIS frontend

A092582 Triangle read by rows: T(n,k) is the number of permutations p of [n] having length of first run equal to k.

n	a(n)
1	1
2	1
3	1
4	3
5	2
6	1
7	12
8	8
9	3
10	1
11	60
12	40
13	15
14	4
15	1
16	360
17	240
18	90
19	24
20	5
21	1
22	2520
23	1680
24	630
25	168
26	35
27	6
28	1
29	20160
30	13440
31	5040
32	1344
33	280
34	48
35	7
36	1
37	181440
38	120960
39	45360
40	12096
41	2520
42	432
43	63
44	8
45	1
46	1814400
47	1209600
48	453600
49	120960
50	25200
51	4320
52	630
53	80
54	9
55	1

[1, 1, 1, 3, 2, 1, 12, 8, 3, 1, 60, 40, 15, 4, 1, 360, 240, 90, 24, 5, 1, 2520, 1680, 630, 168, 35, 6, 1, 20160, 13440, 5040, 1344, 280, 48, 7, 1, 181440, 120960, 45360, 12096, 2520, 432, 63, 8, 1, 1814400, 1209600, 453600, 120960, 25200, 4320, 630, 80, 9, 1]

cp's OEIS Frontend

A092582 Triangle read by rows: T(n,k) is the number of permutations p of [n] having length of first run equal to k.

Table of values

List of values