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A124037 as a simple table

na(n)
01
11
2-1
32
4-4
51
65
7-13
87
9-1
1013
11-40
1233
13-10
141
1534
16-120
17132
18-62
1913
20-1
2189
22-354
23483
24-308
25100
26-16
271
28233
29-1031
301671
31-1345
32595
33-147
3419
35-1
36610
37-2972
385561
39-5398
403030
41-1020
42203
43-22
441
451597
46-8495
4717984
48-20410
4913893
50-5943
511610
52-268
5325
54-1
554181
56-24110
5756886
58-73816
5959059

[1,1,-1,2,-4,1,5,-13,7,-1,13,-40,33,-10,1,34,-120,
 132,-62,13,-1,89,-354,483,-308,100,-16,1,233,
 -1031,1671,-1345,595,-147,19,-1,610,-2972,5561,
 -5398,3030,-1020,203,-22,1,1597,-8495,17984,
 -20410,13893,-5943,1610,-268,25,-1,4181,-24110,
 56886,-73816,59059]