A009963 - cp's OEIS frontend

A009963 Triangle of numbers n!(n-1)!...(n-k+1)!/(1!2!...k!).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	6
8	6
9	1
10	1
11	24
12	72
13	24
14	1
15	1
16	120
17	1440
18	1440
19	120
20	1
21	1
22	720
23	43200
24	172800
25	43200
26	720
27	1
28	1
29	5040
30	1814400
31	36288000
32	36288000
33	1814400
34	5040
35	1
36	1
37	40320
38	101606400
39	12192768000
40	60963840000
41	12192768000
42	101606400
43	40320
44	1

[1, 1, 1, 1, 2, 1, 1, 6, 6, 1, 1, 24, 72, 24, 1, 1, 120, 1440, 1440, 120, 1, 1, 720, 43200, 172800, 43200, 720, 1, 1, 5040, 1814400, 36288000, 36288000, 1814400, 5040, 1, 1, 40320, 101606400, 12192768000, 60963840000, 12192768000, 101606400, 40320, 1]

cp's OEIS Frontend

A009963 Triangle of numbers n!(n-1)!...(n-k+1)!/(1!2!...k!).

Table of values

List of values