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A146872 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 17
8 29
9 597
10 1065
11 7937
12 22829
13 200213
14 509041
15 58873393
16 209855541
17 45265003821
18 200942562233
19 23496039620441
20 129320692683437
21 19050505005054181
22 117997121583703345

[1,1,1,1,1,1,17,29,597,1065,7937,22829,200213,
 509041,58873393,209855541,45265003821,
 200942562233,23496039620441,129320692683437,
 19050505005054181,117997121583703345]

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Last modified September 21 14:24 EDT 2023. Contains 365502 sequences. (Running on oeis4.)