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A121456 as a simple table

na(n)
11
2-2
31
4-4
56
6-2
78
8-8
91
10-12
1112
12-4
1314
14-16
156
16-16
1718
18-2
1920
20-24
218
22-24
2324
24-8
2531
26-28
271
28-32
2930
30-12
3132
32-32
3312
34-36
3548
36-4
3738
38-40
3914
40-48
4142
42-16
4344
44-48
456
46-48
4748
48-16
4957
50-62
5118
52-56
5354
54-2
5572
56-64
5720
58-60
5960
60-24
6162
62-64
638
64-64
6584
66-24
6768
68-72
6924
70-96
7172
72-8
7374
74-76
7531
76-80

[1,-2,1,-4,6,-2,8,-8,1,-12,12,-4,14,-16,6,-16,18,
 -2,20,-24,8,-24,24,-8,31,-28,1,-32,30,-12,32,-32,
 12,-36,48,-4,38,-40,14,-48,42,-16,44,-48,6,-48,48,
 -16,57,-62,18,-56,54,-2,72,-64,20,-60,60,-24,62,
 -64,8,-64,84,-24,68,-72,24,-96,72,-8,74,-76,31,
 -80]