login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A057729
as a simple table
n
a(n)
1
0
2
0
3
1
4
1
5
1
6
4
7
5
8
16
9
37
10
120
11
345
12
1181
13
3844
14
13429
15
46736
16
167172
[0,0,1,1,1,4,5,16,37,120,345,1181,3844,13429, 46736,167172]