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A164950
as a simple table
n
a(n)
1
1
2
0
3
0
4
0
5
1
6
1
7
0
8
0
9
0
10
1
11
1
12
1
13
0
14
0
15
0
16
1
17
1
18
1
19
0
20
0
[1,0,0,0,1,1,0,0,0,1,1,1,0,0,0,1,1,1,0,0]