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A123878 as a simple table

na(n)
01
10
21
3-1
40
51
6-1
7-3
80
91
100
11-3
12-5
130
141
151
163
17-5
18-7
190
201
211
229
2310
24-7
25-9
260
271
280
295
3025
3121
32-9
33-11
340
351
36-1
37-9
385
3949
4036
41-11
42-13
430
441
45-1
46-18
47-50
48-7
4981
5055
51-13
52-15
530
541
550
56-7
57-70
58-147
59-39
60121
6178
62-15
63-17
640
651

[1,0,1,-1,0,1,-1,-3,0,1,0,-3,-5,0,1,1,3,-5,-7,0,1,
 1,9,10,-7,-9,0,1,0,5,25,21,-9,-11,0,1,-1,-9,5,49,
 36,-11,-13,0,1,-1,-18,-50,-7,81,55,-13,-15,0,1,0,
 -7,-70,-147,-39,121,78,-15,-17,0,1]