A085087 - cp's OEIS frontend

A085087 a(1) = 1; for n>1, a(n) = a(n-1)*n if n is prime, a(n) = a(n-1)/n if n is composite dividing a(n-1) else a(n) = a(n-1).

n	a(n)
1	1
2	2
3	6
4	6
5	30
6	5
7	35
8	35
9	35
10	35
11	385
12	385
13	5005
14	5005
15	5005
16	5005
17	85085
18	85085
19	1616615
20	1616615
21	1616615
22	1616615
23	37182145
24	37182145
25	37182145
26	37182145
27	37182145
28	37182145
29	1078282205
30	1078282205
31	33426748355
32	33426748355

[1, 2, 6, 6, 30, 5, 35, 35, 35, 35, 385, 385, 5005, 5005, 5005, 5005, 85085, 85085, 1616615, 1616615, 1616615, 1616615, 37182145, 37182145, 37182145, 37182145, 37182145, 37182145, 1078282205, 1078282205, 33426748355, 33426748355]

cp's OEIS Frontend

A085087 a(1) = 1; for n>1, a(n) = a(n-1)*n if n is prime, a(n) = a(n-1)/n if n is composite dividing a(n-1) else a(n) = a(n-1).

Table of values

List of values