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A373159
as a simple table
n
a(n)
1
1
2
2
3
3
4
4
5
6
6
7
7
8
8
9
9
11
10
12
11
14
12
16
13
19
14
21
15
24
[1,2,3,4,6,7,8,9,11,12,14,16,19,21,24]
