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A204017 as a simple table

na(n)
10
2-1
3-1
40
51
64
76
80
9-1
10-15
11-38
12-20
130
141
1556
16206
17184
1850
190
20-1
21-185
22-1072
23-1357
24-630
25-105
260
271
28204
295146
309276
316060
321736
33196
340
35-1
366209
37-17334
38-58470
39-52452
40-21102
41-4116
42-336
430
441
45-112400
46-67682
47293984

[0,-1,-1,0,1,4,6,0,-1,-15,-38,-20,0,1,56,206,184,
 50,0,-1,-185,-1072,-1357,-630,-105,0,1,204,5146,
 9276,6060,1736,196,0,-1,6209,-17334,-58470,-52452,
 -21102,-4116,-336,0,1,-112400,-67682,293984]