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A146578 as a simple table

n a(n)
1 1
2 1
3 1
4 17
5 57
6 457
7 7575
8 206575
9 7284891
10 429058537
11 43146239725
12 6893658124929
13 1724211995309777

[1,1,1,17,57,457,7575,206575,7284891,429058537,
 43146239725,6893658124929,1724211995309777]

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Last modified May 3 04:17 EDT 2024. Contains 372205 sequences. (Running on oeis4.)