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A146706 as a simple table

n a(n)
1 1
2 1
3 1
4 17
5 49
6 329
7 4511
8 91215
9 2775809
10 118081991
11 8300875867
12 930028727469
13 155873672022641

[1,1,1,17,49,329,4511,91215,2775809,118081991,
 8300875867,930028727469,155873672022641]

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Last modified September 28 06:57 EDT 2021. Contains 347703 sequences. (Running on oeis4.)