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A167568 as a simple table

na(n)
11
20
32
42
5-2
66
70
816
9-16
1024
1124
12-48
13144
14-120
15120
160
17432
18-864
191392
20-960
21720
22720
23-2160
248208
25-12816
2614448
27-8400
285040
290
3023040
31-69120
32149760
33-184320
34161280
35-80640
3640320
3740320
38-161280
39760320
40-1716480
412684160
42-2695680

[1,0,2,2,-2,6,0,16,-16,24,24,-48,144,-120,120,0,
 432,-864,1392,-960,720,720,-2160,8208,-12816,
 14448,-8400,5040,0,23040,-69120,149760,-184320,
 161280,-80640,40320,40320,-161280,760320,-1716480,
 2684160,-2695680]