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A144876
as a simple table
n
a(n)
1
1
2
2
3
4
4
5
5
8
6
10
7
13
8
16
9
19
10
22
11
26
12
30
13
34
14
38
[1,2,4,5,8,10,13,16,19,22,26,30,34,38]