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A008793 as a simple table

n a(n)
0 1
1 2
2 20
3 980
4 232848
5 267227532
6 1478619421136
7 39405996318420160
8 5055160684040254910720
9 3120344782196754906063540800
10 9265037718181937012241727284450000
11 132307448895406086706107959899799334375000 

[1,2,20,980,232848,267227532,1478619421136,
 39405996318420160,5055160684040254910720,
 3120344782196754906063540800,
 9265037718181937012241727284450000,
 132307448895406086706107959899799334375000]

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Last modified July 16 13:39 EDT 2024. Contains 374349 sequences. (Running on oeis4.)