login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A206346
as a simple table
n
a(n)
1
0
2
1
3
1
4
4
5
8
6
72
7
236
8
3665
9
19037
[0,1,1,4,8,72,236,3665,19037]