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A366410
as a simple table
n
a(n)
1
0
2
3
3
0
4
15
5
6
6
3
7
0
8
15
9
0
10
9
11
0
12
15
13
0
14
3
15
6
16
15
[0,3,0,15,6,3,0,15,0,9,0,15,0,3,6,15]