A012605 - OEIS

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A012605 as a simple table

n	a(n)
0	2
1	-152
2	227232
3	-795112320
4	44292972802560
5	2002112058391603200
6	937365267083373473341440
7	444372302749315420373243166720

[2,-152,227232,-795112320,44292972802560, 2002112058391603200,937365267083373473341440, 444372302749315420373243166720]