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A212805 as a simple table

n a(n)
0 2
1 1
2 3
3 162
4 269568
5 21772800000
6 128430157824000000
7 78734235726376796160000000
8 6793969131008738346811156070400000000
9 107405833909078014660339510303458240495616000000000
10 392460917103771065568880570648836410770980864000000000000000000000
11 407931390497527236736237611020825246476822200409679741237329920000000000000000000000 

[2,1,3,162,269568,21772800000,128430157824000000,
 78734235726376796160000000,
 6793969131008738346811156070400000000,
 10740583390907801466033951030345824049561600000000\
 0,
 39246091710377106556888057064883641077098086400000\
 0000000000000000,
 40793139049752723673623761102082524647682220040967\
 9741237329920000000000000000000000]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)