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A119479
as a simple table
n
a(n)
1
1
2
2
3
1
4
3
5
1
6
5
7
1
8
7
9
1
10
3
11
1
12
15
13
1
14
3
15
1
16
7
17
1
18
5
19
1
20
7
21
1
22
3
23
1
[1,2,1,3,1,5,1,7,1,3,1,15,1,3,1,7,1,5,1,7,1,3,1]