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A356857 as a simple table

na(n)
11
2-3
32
412
5-24
66
7-60
8280
9-180
1024
11360
12-3600
134500
14-1440
15120
16-2520
1752080
18-113400
1965520
20-12600
21720
2220160
23-846720
243034080
25-2822400
26940800
27-120960
285040
29-181440
3015361920
31-87635520
32123451776
33-63504000
3413789440
35-1270080
3640320

[1,-3,2,12,-24,6,-60,280,-180,24,360,-3600,4500,
 -1440,120,-2520,52080,-113400,65520,-12600,720,
 20160,-846720,3034080,-2822400,940800,-120960,
 5040,-181440,15361920,-87635520,123451776,
 -63504000,13789440,-1270080,40320]