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A170976
as a simple table
n
a(n)
0
1
1
0
2
0
3
1
4
0
5
0
6
0
7
2
8
0
9
0
10
2
11
1
12
0
13
0
14
2
15
0
16
0
17
1
18
2
19
0
20
0
21
2
22
0
23
0
24
0
25
1
26
0
27
0
28
1
[1,0,0,1,0,0,0,2,0,0,2,1,0,0,2,0,0,1,2,0,0,2,0,0, 0,1,0,0,1]