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A171760
as a simple table
n
a(n)
0
0
1
1
2
0
3
0
4
2
5
5
6
4
7
7
8
6
9
7
10
8
11
11
12
12
13
13
14
14
15
15
16
16
17
17
[0,1,0,0,2,5,4,7,6,7,8,11,12,13,14,15,16,17]
