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A001805 as a simple table

n a(n)
3 6
4 96
5 1200
6 14400
7 176400
8 2257920
9 30481920
10 435456000
11 6586272000
12 105380352000
13 1780927948800
14 31732897996800
15 594991837440000
16 11716762337280000
17 241867451105280000
18 5224336943874048000
19 117874102296158208000
20 2773508289321369600000

[6,96,1200,14400,176400,2257920,30481920,
 435456000,6586272000,105380352000,1780927948800,
 31732897996800,594991837440000,11716762337280000,
 241867451105280000,5224336943874048000,
 117874102296158208000,2773508289321369600000]

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Last modified April 24 15:57 EDT 2024. Contains 371961 sequences. (Running on oeis4.)