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A176013 as a simple table

na(n)
1-1
22
31
4-6
5-9
6-1
724
872
924
101
11-120
12-600
13-400
14-50
15-1
16720
175400
186000
191500
2090
211
22-5040
23-52920
24-88200
25-36750
26-4410
27-147
28-1
2940320
30564480
311317120
32823200
33164640
3410976
35224
361
37-362880
38-6531840
39-20321280
40-17781120
41-5334336
42-592704
43-24192
44-324
45-1

[-1,2,1,-6,-9,-1,24,72,24,1,-120,-600,-400,-50,-1,
 720,5400,6000,1500,90,1,-5040,-52920,-88200,
 -36750,-4410,-147,-1,40320,564480,1317120,823200,
 164640,10976,224,1,-362880,-6531840,-20321280,
 -17781120,-5334336,-592704,-24192,-324,-1]