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A118209 as a simple table

na(n)
11
2-3
3-2
45
5-4
66
7-6
8-11
97
1012
11-10
12-10
13-12
1418
158
1621
17-16
18-21
19-18
20-20
2112
2230
23-22
2422
2521
2636
27-20
28-30
29-28
30-24
31-30
32-43
3320
3448
3524
3635
37-36
3854
3924
4044
41-40
42-36
43-42
44-50
45-28
4666
47-46
48-42
4943
50-63
5132
52-60
53-52
5460
5540
5666
5736
5884
59-58
6040
61-60
6290
63-42
6485
6548
66-60
67-66
68-80
6944
70-72
71-70
72-77
73-72
74108
75-42

[1,-3,-2,5,-4,6,-6,-11,7,12,-10,-10,-12,18,8,21,
 -16,-21,-18,-20,12,30,-22,22,21,36,-20,-30,-28,
 -24,-30,-43,20,48,24,35,-36,54,24,44,-40,-36,-42,
 -50,-28,66,-46,-42,43,-63,32,-60,-52,60,40,66,36,
 84,-58,40,-60,90,-42,85,48,-60,-66,-80,44,-72,-70,
 -77,-72,108,-42]