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A146399 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 17
10 17
11 53
12 53
13 413
14 413
15 6359
16 6359
17 140181
18 140181
19 4762523
20 4762523
21 251128215
22 251128215
23 21398918375

[1,1,1,1,1,1,1,1,17,17,53,53,413,413,6359,6359,
 140181,140181,4762523,4762523,251128215,251128215,
 21398918375]

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Last modified August 10 20:21 EDT 2022. Contains 356039 sequences. (Running on oeis4.)