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A146868 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 1
13 9
14 9
15 25
16 25
17 67
18 67
19 375
20 375
21 1415
22 1415

[1,1,1,1,1,1,1,1,1,1,1,1,9,9,25,25,67,67,375,375,
 1415,1415]

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Last modified August 9 10:38 EDT 2022. Contains 356021 sequences. (Running on oeis4.)