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A125131 as a simple table

na(n)
11
2-1
3-2
41
5-4
62
7-6
8-1
94
104
11-10
12-2
13-12
146
158
161
17-16
18-4
19-18
20-4
2112
2210
23-22
242
2516
2612
27-8
28-6
29-28
30-8
31-30
32-1
3320
3416
3524
364
37-36
3818
3924
404
41-40
42-12
43-42
44-10
45-16
4622
47-46
48-2
4936
50-16
5132
52-12
53-52
548
5540
566
5736
5828
59-58
608
61-60
6230
63-24
641
6548
66-20
67-66
68-16
6944
70-24
71-70
72-4
73-72
7436
75-32

[1,-1,-2,1,-4,2,-6,-1,4,4,-10,-2,-12,6,8,1,-16,-4,
 -18,-4,12,10,-22,2,16,12,-8,-6,-28,-8,-30,-1,20,
 16,24,4,-36,18,24,4,-40,-12,-42,-10,-16,22,-46,-2,
 36,-16,32,-12,-52,8,40,6,36,28,-58,8,-60,30,-24,1,
 48,-20,-66,-16,44,-24,-70,-4,-72,36,-32]