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A146663 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 3
12 3
13 9
14 9
15 23
16 23
17 67
18 67
19 379
20 379
21 2563
22 2563
23 18843
24 18843

[1,1,1,1,1,1,1,1,1,1,3,3,9,9,23,23,67,67,379,379,
 2563,2563,18843,18843]

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Last modified July 4 18:17 EDT 2022. Contains 355083 sequences. (Running on oeis4.)