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A157602 as a simple table

n a(n)
2 1
3 9
4 378
5 39990
6 6207435
7 649615491
8 61839617931
9 5291171373321
10 436429418237100
11 34318546032095787
12 2635382197485052125
13 197482663359487272702
14 14177933118661639661880
15 968391907322785974064260

[1,9,378,39990,6207435,649615491,61839617931,
 5291171373321,436429418237100,34318546032095787,
 2635382197485052125,197482663359487272702,
 14177933118661639661880,968391907322785974064260]

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Last modified May 20 15:47 EDT 2022. Contains 353874 sequences. (Running on oeis4.)