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A009083 as a simple table

na(n)
01
10
2-12
3-480
4-22512
5-1224960
6-61017792
71438993920
81844639547648
9677206700482560
10225542012911531008
1176252348319434383360
1226581103125260630233088
139309180001030233433374720

[1,0,-12,-480,-22512,-1224960,-61017792,
 1438993920,1844639547648,677206700482560,
 225542012911531008,76252348319434383360,
 26581103125260630233088,9309180001030233433374720]