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A356464
as a simple table
n
a(n)
1
1
2
2
3
3
4
2
5
3
6
2
7
3
8
2
9
3
10
2
11
3
12
2
13
3
14
2
15
3
[1,2,3,2,3,2,3,2,3,2,3,2,3,2,3]
