login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A264603
as a simple table
n
a(n)
1
1
2
1
3
1
4
12
5
192
6
145164
7
1524901344
[1,1,1,12,192,145164,1524901344]