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A012998 as a simple table

n a(n)
0 2
1 -8
2 72
3 -3936
4 193920
5 -21876736
6 2967878656
7 -589063146496
8 149737853943808
9 -48291040167362560
10 19310260456438693888
11 -9310185546185219768320
12 5359263862743046978797568

[2,-8,72,-3936,193920,-21876736,2967878656,
 -589063146496,149737853943808,-48291040167362560,
 19310260456438693888,-9310185546185219768320,
 5359263862743046978797568]

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Last modified January 17 11:29 EST 2022. Contains 350394 sequences. (Running on oeis4.)