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A166231 as a simple table

n a(n)
0 1
1 4
2 48
3 1280
4 69632
5 7602176
6 1660944384
7 725849473024
8 634418209226752
9 1109011408239984640
10 3877275019992826380288
11 27111105978154633171828736
12 379138479844261543254652092416
13 10604214183559196000870296488771584 

[1,4,48,1280,69632,7602176,1660944384,
 725849473024,634418209226752,1109011408239984640,
 3877275019992826380288,27111105978154633171828736,
 379138479844261543254652092416,
 10604214183559196000870296488771584]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)