A124675 - cp's OEIS frontend

A124675 a(n) = product of the positive integers k, k<= n, such that the positive integers <= k and coprime to k are also coprime to n.

n	a(n)
1	1
2	2
3	6
4	8
5	120
6	12
7	5040
8	384
9	324
10	80
11	39916800
12	144
13	6227020800
14	672
15	90
16	10321920
17	355687428096000
18	2592
19	121645100408832000
20	1600
21	756
22	84480
23	25852016738884976640000
24	62208
25	9000000
26	1198080
27	14285134080
28	18816

[1, 2, 6, 8, 120, 12, 5040, 384, 324, 80, 39916800, 144, 6227020800, 672, 90, 10321920, 355687428096000, 2592, 121645100408832000, 1600, 756, 84480, 25852016738884976640000, 62208, 9000000, 1198080, 14285134080, 18816]

cp's OEIS Frontend

A124675 a(n) = product of the positive integers k, k<= n, such that the positive integers <= k and coprime to k are also coprime to n.

Table of values

List of values