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A171657 as a simple table

na(n)
11
21
30
4-3
54
60
7-30
80
930
1034
110
12-462
130
141050
150
16-630
17496
180
19-10560
200
2140320
220
23-52920
240
2522680
2611056
270
28-338448
290
301907400
310
32-4074840
330
343742200
350
36-1247400
37349504
380
39-14523600
400
41112192080
420
43-344504160
440
45505945440
460

[1,1,0,-3,4,0,-30,0,30,34,0,-462,0,1050,0,-630,
 496,0,-10560,0,40320,0,-52920,0,22680,11056,0,
 -338448,0,1907400,0,-4074840,0,3742200,0,-1247400,
 349504,0,-14523600,0,112192080,0,-344504160,0,
 505945440,0]