A271530 - cp's OEIS frontend

A271530 a(1) = 1; thereafter a(n) is the product of all 0 < m < n for which n == a(m) (mod m).

n	a(n)
1	1
2	1
3	2
4	1
5	24
6	1
7	12
8	3
9	40
10	1
11	480
12	7
13	432
14	15
15	28
16	13
17	24
18	11
19	40320
20	3
21	1520
22	9
23	120
24	85
25	48
26	21
27	16
28	345
29	1452971520
30	1
31	8553600
32	3
33	56
34	5
35	44544
36	1
37	1161216
38	3
39	340
40	13167
41	155040
42	13
43	130636800
44	15
45	4736
46	1
47	36167040
48	1075
49	66960
50	63
51	40480
52	1
53	27456

[1, 1, 2, 1, 24, 1, 12, 3, 40, 1, 480, 7, 432, 15, 28, 13, 24, 11, 40320, 3, 1520, 9, 120, 85, 48, 21, 16, 345, 1452971520, 1, 8553600, 3, 56, 5, 44544, 1, 1161216, 3, 340, 13167, 155040, 13, 130636800, 15, 4736, 1, 36167040, 1075, 66960, 63, 40480, 1, 27456]

cp's OEIS Frontend

A271530 a(1) = 1; thereafter a(n) is the product of all 0 < m < n for which n == a(m) (mod m).

Table of values

List of values