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A152668 as a simple table

n a(n)
2 2
3 6
4 36
5 192
6 1440
7 10800
8 100800
9 967680
10 10886400
11 127008000
12 1676505600
13 22992076800
14 348713164800
15 5492232345600
16 94152554496000
17 1673823191040000
18 32011868528640000
19 633834996867072000
20 13380961044971520000 

[2,6,36,192,1440,10800,100800,967680,10886400,
 127008000,1676505600,22992076800,348713164800,
 5492232345600,94152554496000,1673823191040000,
 32011868528640000,633834996867072000,
 13380961044971520000]

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Last modified July 13 12:36 EDT 2024. Contains 374284 sequences. (Running on oeis4.)