login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A129584
as a simple table
n
a(n)
1
1
2
0
3
0
4
1
5
6
6
36
7
324
8
5280
9
156088
10
8415760
[1,0,0,1,6,36,324,5280,156088,8415760]