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A013179 as a simple table

n a(n)
0 1
1 -4
2 16
3 -640
4 21760
5 -2291200
6 223436800
7 -44438118400
8 8725110784000
9 -2796896567296000
10 926039081943040000
11 -435519369139978240000
12 218626979887002419200000
13 -141711151230417633280000000

[1,-4,16,-640,21760,-2291200,223436800,
 -44438118400,8725110784000,-2796896567296000,
 926039081943040000,-435519369139978240000,
 218626979887002419200000,
 -141711151230417633280000000]

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Last modified January 27 22:52 EST 2022. Contains 350654 sequences. (Running on oeis4.)