login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A180962
as a simple table
n
a(n)
1
1
2
1
3
2
4
16
5
4200
6
1093025200
[1,1,2,16,4200,1093025200]