login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A171012
as a simple table
n
a(n)
1
0
2
0
3
2
4
14
5
71
6
341
7
1591
8
7610
9
35432
10
165209
[0,0,2,14,71,341,1591,7610,35432,165209]