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A071309 as a simple table

n a(n)
1 1
2 12
3 1320
4 1742400
5 25721308800
6 4145554781913600
7 7338585441586912128000
8 142998501741091915820267520000
9 30655092458961006120118267244605440000
10 72283553302207308288060341547889057722286080000 

[1,12,1320,1742400,25721308800,4145554781913600,
 7338585441586912128000,
 142998501741091915820267520000,
 30655092458961006120118267244605440000,
 72283553302207308288060341547889057722286080000]

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Last modified April 23 11:27 EDT 2024. Contains 371913 sequences. (Running on oeis4.)