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A232484
as a simple table
n
a(n)
1
1
2
0
3
0
4
1
5
0
6
1
7
1
8
2
9
4
10
7
11
18
12
40
13
119
14
323
15
1100
16
3594
17
13068
18
47444
[1,0,0,1,0,1,1,2,4,7,18,40,119,323,1100,3594, 13068,47444]