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A158523 as a simple table

na(n)
11
2-3
3-4
46
5-6
612
7-8
8-12
912
1018
11-12
12-24
13-14
1424
1524
1624
17-18
18-36
19-20
20-36
2132
2236
23-24
2448
2530
2642
27-36
28-48
29-30
30-72
31-32
32-48
3348
3454
3548
3672
37-38
3860
3956
4072
41-42
42-96
43-44
44-72
45-72
4672
47-48
48-96
4956
50-90
5172
52-84
53-54
54108
5572
5696
5780
5890
59-60
60144

[1,-3,-4,6,-6,12,-8,-12,12,18,-12,-24,-14,24,24,
 24,-18,-36,-20,-36,32,36,-24,48,30,42,-36,-48,-30,
 -72,-32,-48,48,54,48,72,-38,60,56,72,-42,-96,-44,
 -72,-72,72,-48,-96,56,-90,72,-84,-54,108,72,96,80,
 90,-60,144]