A066121 - cp's OEIS frontend

A066121 Multi-level factorials: triangle with a(n,k)=a(n-1,k-1)*a(n-1,k) but with a(n,1)=n and a(n,n)=1.

n	a(n)
1	1
2	2
3	1
4	3
5	2
6	1
7	4
8	6
9	2
10	1
11	5
12	24
13	12
14	2
15	1
16	6
17	120
18	288
19	24
20	2
21	1
22	7
23	720
24	34560
25	6912
26	48
27	2
28	1
29	8
30	5040
31	24883200
32	238878720
33	331776
34	96
35	2
36	1
37	9
38	40320
39	125411328000
40	5944066965504000
41	79254226206720
42	31850496
43	192
44	2
45	1
46	10
47	362880

[1, 2, 1, 3, 2, 1, 4, 6, 2, 1, 5, 24, 12, 2, 1, 6, 120, 288, 24, 2, 1, 7, 720, 34560, 6912, 48, 2, 1, 8, 5040, 24883200, 238878720, 331776, 96, 2, 1, 9, 40320, 125411328000, 5944066965504000, 79254226206720, 31850496, 192, 2, 1, 10, 362880]

cp's OEIS Frontend

A066121 Multi-level factorials: triangle with a(n,k)=a(n-1,k-1)*a(n-1,k) but with a(n,1)=n and a(n,n)=1.

Table of values

List of values