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A091990 as a simple table

n a(n)
3 1
4 2
5 10
6 140
7 185
8 28490
9 3568
10 4117006
11 68166
12 695025466
13 1324149

[1,2,10,140,185,28490,3568,4117006,68166,
 695025466,1324149]

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Last modified September 8 06:01 EDT 2024. Contains 375751 sequences. (Running on oeis4.)