login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A360879
as a simple table
n
a(n)
1
0
2
1
3
4
4
17
5
118
6
1198
7
17133
8
311757
9
6803203
[0,1,4,17,118,1198,17133,311757,6803203]