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A091549 as a simple table

n a(n)
2 1
3 28
4 960
5 43200
6 2520000
7 186278400
8 17069875200
9 1902071808000
10 253487646720000
11 39833773056000000
12 7291173820170240000
13 1538106259064094720000
14 370502654756909875200000

[1,28,960,43200,2520000,186278400,17069875200,
 1902071808000,253487646720000,39833773056000000,
 7291173820170240000,1538106259064094720000,
 370502654756909875200000]

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Last modified July 13 14:24 EDT 2024. Contains 374284 sequences. (Running on oeis4.)