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A332077
as a simple table
n
a(n)
1
1
2
2
3
1
4
3
5
2
6
1
7
4
8
7
9
2
10
1
11
5
12
11
13
21
14
2
15
1
16
6
17
21
[1,2,1,3,2,1,4,7,2,1,5,11,21,2,1,6,21]