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A231171 as a simple table

na(n)
01
11
22
36
4-3
524
6-25
76
8120
9-190
1090
11-12
12720
13-1526
141095
15-300
1624
175040
18-13356
1912915
20-5490
21960
22-48
2340320
24-128052
25156100
26-90930
2725500
28-3000
2996
30362880
31-1341936
321975708
33-1469265
34576660
35-113040
369240
37-192
383628800
39-15303024
4026413100
41-23958711
4212184620
43-3423000
44486120
45-28200
46384

[1,1,2,6,-3,24,-25,6,120,-190,90,-12,720,-1526,
 1095,-300,24,5040,-13356,12915,-5490,960,-48,
 40320,-128052,156100,-90930,25500,-3000,96,362880,
 -1341936,1975708,-1469265,576660,-113040,9240,
 -192,3628800,-15303024,26413100,-23958711,
 12184620,-3423000,486120,-28200,384]