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A125839 as a simple table

n a(n)
3 1
4 1
5 6
6 18
7 120
8 1260
9 1485540
10 28667100
11 28667100
12 842889105240
13 2281585556250
14 163881570370980
15 45187548280664790 

[1,1,6,18,120,1260,1485540,28667100,28667100,
 842889105240,2281585556250,163881570370980,
 45187548280664790]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)