A181511 - cp's OEIS frontend

A181511 Triangle T(n,k) = n!/(n-k)! read by rows, 0 <= k < n.

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	6
7	1
8	4
9	12
10	24
11	1
12	5
13	20
14	60
15	120
16	1
17	6
18	30
19	120
20	360
21	720
22	1
23	7
24	42
25	210
26	840
27	2520
28	5040
29	1
30	8
31	56
32	336
33	1680
34	6720
35	20160
36	40320
37	1
38	9
39	72
40	504
41	3024
42	15120
43	60480
44	181440
45	362880
46	1
47	10
48	90
49	720
50	5040
51	30240
52	151200
53	604800
54	1814400
55	3628800

[1, 1, 2, 1, 3, 6, 1, 4, 12, 24, 1, 5, 20, 60, 120, 1, 6, 30, 120, 360, 720, 1, 7, 42, 210, 840, 2520, 5040, 1, 8, 56, 336, 1680, 6720, 20160, 40320, 1, 9, 72, 504, 3024, 15120, 60480, 181440, 362880, 1, 10, 90, 720, 5040, 30240, 151200, 604800, 1814400, 3628800]

cp's OEIS Frontend

A181511 Triangle T(n,k) = n!/(n-k)! read by rows, 0 <= k < n.

Table of values

List of values