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A018388
as a simple table
n
a(n)
1
1
2
3
3
5
4
7
5
9
6
15
7
21
8
35
9
45
10
63
11
105
12
315
[1,3,5,7,9,15,21,35,45,63,105,315]
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Last modified August 29 17:19 EDT 2024. Contains 375518 sequences. (Running on oeis4.)