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A248380
as a simple table
n
a(n)
1
2
2
2
3
2
4
2
5
1
6
2
7
1
8
2
9
2
10
2
11
1
12
2
13
1
14
2
15
2
[2,2,2,2,1,2,1,2,2,2,1,2,1,2,2]