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A002243
as a simple table
n
a(n)
1
1
2
2
3
3
4
5
5
6
6
8
7
12
8
15
9
20
10
23
11
33
12
78
[1,2,3,5,6,8,12,15,20,23,33,78]
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Last modified April 27 03:48 EDT 2024. Contains 372009 sequences. (Running on oeis4.)