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A001332 as a simple table

na(n)
01
11
2-4
3120
4-12096
53024000
6-1576143360
71525620096000
8-2522591034163200
96686974460694528000
10-27033456071346536448000
11160078872315904478576640000
12-1342964491649083924630732800000
1315522270327163593186886877184000000

[1,1,-4,120,-12096,3024000,-1576143360,
 1525620096000,-2522591034163200,
 6686974460694528000,-27033456071346536448000,
 160078872315904478576640000,
 -1342964491649083924630732800000,
 15522270327163593186886877184000000]