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A147340 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 9
12 9
13 25
14 25
15 57
16 57
17 341
18 341
19 3079
20 3079
21 34841
22 34841
23 488119
24 488119
25 8511553

[1,1,1,1,1,1,1,1,1,1,9,9,25,25,57,57,341,341,3079,
 3079,34841,34841,488119,488119,8511553]

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Last modified September 30 03:02 EDT 2022. Contains 357095 sequences. (Running on oeis4.)