A271503 - cp's OEIS frontend

A271503 a(1) = 1; thereafter a(n) is the product of all 0 < m < n for which a(m) divides n.

n	a(n)
1	1
2	1
3	2
4	6
5	2
6	120
7	2
8	210
9	2
10	1890
11	2
12	83160
13	2
14	270270
15	2
16	4054050
17	2
18	275675400
19	2
20	1309458150
21	2
22	27498621150
23	2
24	2529873145800
25	2
26	15811707161250
27	2
28	426916093353750
29	2
30	49522266829035000
31	2
32	383797567925021250
33	2
34	12665319741525701250
35	2

[1, 1, 2, 6, 2, 120, 2, 210, 2, 1890, 2, 83160, 2, 270270, 2, 4054050, 2, 275675400, 2, 1309458150, 2, 27498621150, 2, 2529873145800, 2, 15811707161250, 2, 426916093353750, 2, 49522266829035000, 2, 383797567925021250, 2, 12665319741525701250, 2]

cp's OEIS Frontend

A271503 a(1) = 1; thereafter a(n) is the product of all 0 < m < n for which a(m) divides n.

Table of values

List of values