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A230305
as a simple table
n
a(n)
2
0
3
0
4
2
5
0
6
1
7
0
8
1
9
4
10
3
11
0
12
1
13
0
14
3
15
4
16
2
17
0
18
3
19
0
[0,0,2,0,1,0,1,4,3,0,1,0,3,4,2,0,3,0]