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A113418 as a simple table

na(n)
11
2-1
3-2
4-1
5-4
62
78
8-1
97
104
11-10
122
13-12
14-8
158
16-1
1718
18-7
19-18
204
21-16
2210
2324
242
2521
2612
27-20
28-8
29-28
30-8
3132
32-1
3320
34-18
35-32
36-7
37-36
3818
3924
404
4142
4216
43-42
4410
45-28
46-24
4748
482
4957
50-21
51-36
5212
53-52
5420
5540
56-8
5736
5828
59-58
60-8
61-60
62-32
6356
64-1
6548
66-20
67-66
68-18
69-48
7032
7172
72-7
7374
7436
75-42
7618
77-80
78-24

[1,-1,-2,-1,-4,2,8,-1,7,4,-10,2,-12,-8,8,-1,18,-7,
 -18,4,-16,10,24,2,21,12,-20,-8,-28,-8,32,-1,20,
 -18,-32,-7,-36,18,24,4,42,16,-42,10,-28,-24,48,2,
 57,-21,-36,12,-52,20,40,-8,36,28,-58,-8,-60,-32,
 56,-1,48,-20,-66,-18,-48,32,72,-7,74,36,-42,18,
 -80,-24]