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A294616 as a simple table

na(n)
01
11
2-1
31
4-1
5-1
61
7-1
8-2
91
101
11-1
12-4
130
14-1
151
16-1
17-8
18-6
19-12
2041
211
22-1
23-16
24-30
25-72
26180
27-131
281
29-1
30-32
31-114
32-360
33840
34-1080
351499
361
37-1
38-64
39-390
40-1656
414200
42-8640
4315120
44-4159
451
46-1
47-128
48-1266
49-7272
5022440
51-69120
52161280
53-45360

[1,1,-1,1,-1,-1,1,-1,-2,1,1,-1,-4,0,-1,1,-1,-8,-6,
 -12,41,1,-1,-16,-30,-72,180,-131,1,-1,-32,-114,
 -360,840,-1080,1499,1,-1,-64,-390,-1656,4200,
 -8640,15120,-4159,1,-1,-128,-1266,-7272,22440,
 -69120,161280,-45360]