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A278387
as a simple table
n
a(n)
1
2
2
2
3
1
4
1
5
2
6
1
7
2
8
1
9
3
10
2
11
7
12
7
13
6
14
6
15
7
[2,2,1,1,2,1,2,1,3,2,7,7,6,6,7]