login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A161392
as a simple table
n
a(n)
1
1
2
2
3
7
4
32
5
175
6
1080
[1,2,7,32,175,1080]