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A039758 as a simple table

na(n)
01
11
2-1
31
4-4
53
61
7-9
823
9-15
101
11-16
1286
13-176
14105
151
16-25
17230
18-950
191689
20-945
211
22-36
23505
24-3480
2512139
26-19524
2710395
281
29-49
30973
31-10045
3257379
33-177331
34264207
35-135135
361
37-64
381708
39-24640
40208054
41-1038016
422924172
43-4098240
442027025
451
46-81
472796
48-53676
49626934
50-4574934
5120570444
52-53809164
5371697105
54-34459425

[1,1,-1,1,-4,3,1,-9,23,-15,1,-16,86,-176,105,1,
 -25,230,-950,1689,-945,1,-36,505,-3480,12139,
 -19524,10395,1,-49,973,-10045,57379,-177331,
 264207,-135135,1,-64,1708,-24640,208054,-1038016,
 2924172,-4098240,2027025,1,-81,2796,-53676,626934,
 -4574934,20570444,-53809164,71697105,-34459425]