login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A381728
as a simple table
n
a(n)
1
1
2
2
3
5
4
60
5
1560
6
84240
[1,2,5,60,1560,84240]
