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A265847
as a simple table
n
a(n)
1
0
2
0
3
2
4
3
5
2
6
1
7
2
8
2
9
0
10
3
11
2
12
1
13
2
14
6
15
1
16
15
17
2
18
1
19
2
[0,0,2,3,2,1,2,2,0,3,2,1,2,6,1,15,2,1,2]