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A060040
as a simple table
n
a(n)
0
1
1
1
2
2
3
1
4
2
5
3
6
1
7
2
8
3
9
5
10
1
11
2
12
3
13
4
14
9
15
1
16
2
17
3
18
4
19
6
[1,1,2,1,2,3,1,2,3,5,1,2,3,4,9,1,2,3,4,6]