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A142070 as a simple table

na(n)
01
1-1
22
32
4-7
56
6-6
729
8-46
924
1024
11-146
12329
13-326
14120
15-120
16874
17-2521
183604
19-2556
20720
21720
22-6084
2321244
24-39271
2540564
26-22212
275040
28-5040
2948348
30-197380
31444849
32-598116
33479996
34-212976
3540320
3640320
37-432144
382014172
39-5335212
408788569
41-9223012
426023772
43-2239344
44362880

[1,-1,2,2,-7,6,-6,29,-46,24,24,-146,329,-326,120,
 -120,874,-2521,3604,-2556,720,720,-6084,21244,
 -39271,40564,-22212,5040,-5040,48348,-197380,
 444849,-598116,479996,-212976,40320,40320,-432144,
 2014172,-5335212,8788569,-9223012,6023772,
 -2239344,362880]