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A382869
as a simple table
n
a(n)
1
1
2
2
3
3
4
4
5
7
6
9
7
11
8
1751
9
2031
10
45012
11
105772
12
1266256
13
1490601
14
1774525
[1,2,3,4,7,9,11,1751,2031,45012,105772,1266256, 1490601,1774525]