A382072 - cp's OEIS frontend

A382072 Lexicographically earliest sequence of distinct positive integers such that for any n > 0, n*a(n) is a factorial number.

n	a(n)
1	1
2	3
3	2
4	6
5	24
6	4
7	720
8	15
9	80
10	12
11	3628800
12	10
13	479001600
14	360
15	8
16	45
17	20922789888000
18	40
19	6402373705728000
20	36
21	240
22	1814400
23	1124000727777607680000
24	5
25	145152
26	239500800
27	13440
28	180
29	304888344611713860501504000000
30	168
31	265252859812191058636308480000000

[1, 3, 2, 6, 24, 4, 720, 15, 80, 12, 3628800, 10, 479001600, 360, 8, 45, 20922789888000, 40, 6402373705728000, 36, 240, 1814400, 1124000727777607680000, 5, 145152, 239500800, 13440, 180, 304888344611713860501504000000, 168, 265252859812191058636308480000000]

cp's OEIS Frontend

A382072 Lexicographically earliest sequence of distinct positive integers such that for any n > 0, n*a(n) is a factorial number.

Table of values

List of values