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A331431 as a simple table

na(n)
01
1-2
26
33
4-24
530
6-4
760
8-180
9140
105
11-120
12630
13-1120
14630
15-6
16210
17-1680
185040
19-6300
202772
217
22-336
233780
24-16800
2534650
26-33264
2712012
28-8
29504
30-7560
3146200
32-138600
33216216
34-168168
3551480
369
37-720
3813860
39-110880
40450450
41-1009008
421261260
43-823680
44218790

[1,-2,6,3,-24,30,-4,60,-180,140,5,-120,630,-1120,
 630,-6,210,-1680,5040,-6300,2772,7,-336,3780,
 -16800,34650,-33264,12012,-8,504,-7560,46200,
 -138600,216216,-168168,51480,9,-720,13860,-110880,
 450450,-1009008,1261260,-823680,218790]