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A109091 as a simple table

na(n)
11
2-1
3-2
43
51
62
7-6
8-5
97
10-1
1112
12-6
13-12
146
15-2
1611
17-16
18-7
1920
203
2112
22-12
23-22
2410
251
2612
27-20
28-18
2930
302
3132
32-21
33-24
3416
35-6
3621
37-36
38-20
3924
40-5
4142
42-12
43-42
4436
457
4622
47-46
48-22
4943
50-1
5132
52-36
53-52
5420
5512
5630
57-40
58-30
5960
60-6
6162
62-32
63-42
6443
65-12
6624
67-66
68-48
6944
706
7172
72-35
73-72
7436
75-2
7660
77-72

[1,-1,-2,3,1,2,-6,-5,7,-1,12,-6,-12,6,-2,11,-16,
 -7,20,3,12,-12,-22,10,1,12,-20,-18,30,2,32,-21,
 -24,16,-6,21,-36,-20,24,-5,42,-12,-42,36,7,22,-46,
 -22,43,-1,32,-36,-52,20,12,30,-40,-30,60,-6,62,
 -32,-42,43,-12,24,-66,-48,44,6,72,-35,-72,36,-2,
 60,-72]