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A252651 as a simple table

na(n)
01
1-2
2-3
38
4-2
5-6
614
7-12
8-9
920
10-16
11-12
1231
13-2
14-15
1532
16-24
17-24
1838
19-28
20-21
2144
22-12
23-24
2457
25-36
26-27
2772
28-40
29-30
3062
31-16
32-42
3368
34-48
35-36
3674
37-62
38-48
3980
40-2
41-42
42108
43-60
44-45
45112
46-64
47-60
4898
49-24
50-51
51104
52-96
53-54
54110
55-76
56-57

[1,-2,-3,8,-2,-6,14,-12,-9,20,-16,-12,31,-2,-15,
 32,-24,-24,38,-28,-21,44,-12,-24,57,-36,-27,72,
 -40,-30,62,-16,-42,68,-48,-36,74,-62,-48,80,-2,
 -42,108,-60,-45,112,-64,-60,98,-24,-51,104,-96,
 -54,110,-76,-57]