login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A168262
as a simple table
n
a(n)
1
1
2
2
3
6
4
12
5
60
6
420
7
840
8
27720
9
360360
10
5354228880
[1,2,6,12,60,420,840,27720,360360,5354228880]