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A093670
as a simple table
n
a(n)
1
3
2
5
3
7
4
8
5
9
6
12
7
13
8
14
9
16
10
25
11
28
12
34
13
37
14
46
15
82
16
142
[3,5,7,8,9,12,13,14,16,25,28,34,37,46,82,142]
