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A325108
as a simple table
n
a(n)
0
1
1
1
2
1
3
2
4
2
5
4
6
5
7
6
8
6
9
11
10
13
11
16
12
17
13
22
14
27
15
28
[1,1,1,2,2,4,5,6,6,11,13,16,17,22,27,28]