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A136533 as a simple table

na(n)
11
23
3-3
412
5-24
64
760
8-180
965
10-5
11360
12-1440
13822
14-132
156
162520
17-12600
189954
19-2478
20231
21-7
2220160
23-120960
24122832
25-41856
265976
27-368
288
29181440
30-1270080
311581768
32-688392
33133380
34-12492
35549
36-9
371814400
38-14515200
3921462480
40-11412000
412806200
42-354720
4323610
44-780
4510
4619958400

[1,3,-3,12,-24,4,60,-180,65,-5,360,-1440,822,-132,
 6,2520,-12600,9954,-2478,231,-7,20160,-120960,
 122832,-41856,5976,-368,8,181440,-1270080,1581768,
 -688392,133380,-12492,549,-9,1814400,-14515200,
 21462480,-11412000,2806200,-354720,23610,-780,10,
 19958400]