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A102246
as a simple table
n
a(n)
1
1
2
2
3
3
4
5
5
7
6
9
7
10
8
10
9
10
10
11
11
19
12
16
13
14
14
20
15
9
16
12
[1,2,3,5,7,9,10,10,10,11,19,16,14,20,9,12]