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A249947
as a simple table
n
a(n)
1
1
2
1
3
3
4
1
5
3
6
1
7
5
8
3
9
1
10
5
11
3
12
1
13
7
14
5
15
3
16
1
17
7
18
5
19
3
[1,1,3,1,3,1,5,3,1,5,3,1,7,5,3,1,7,5,3]
