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A012484 as a simple table

n a(n)
0 1
1 -4
2 68
3 -3064
4 265936
5 -35730176
6 7235106240
7 -1984468240000
8 725871298851072
9 -336136505074527232
10 194162507080835314688
11 -135973687998348753147904
12 113975638131557424617639936

[1,-4,68,-3064,265936,-35730176,7235106240,
 -1984468240000,725871298851072,
 -336136505074527232,194162507080835314688,
 -135973687998348753147904,
 113975638131557424617639936]

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Last modified April 19 00:18 EDT 2021. Contains 343098 sequences. (Running on oeis4.)