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A098986 as a simple table

na(n)
00
11
2-1
34
4-1
56
6-4
78
8-1
913
10-6
1112
12-4
1314
14-8
158
16-1
1718
18-13
1920
20-6
2132
22-12
2324
24-4
2531
26-14
2740
28-8
2930
30-8
3132
32-1
3316
34-18
3548
36-13
3738
38-20
3956
40-6
4142
42-32
4344
44-12
4526
46-24
4748
48-4
4957
50-31
5124
52-14
5354
54-40
5572
56-8
5780
58-30
5960
60-8
6162
62-32
63104
64-1
6584
66-16
6768
68-18
6932
70-48
7172
72-13
7374
74-38
75124
76-20
7796

[0,1,-1,4,-1,6,-4,8,-1,13,-6,12,-4,14,-8,8,-1,18,
 -13,20,-6,32,-12,24,-4,31,-14,40,-8,30,-8,32,-1,
 16,-18,48,-13,38,-20,56,-6,42,-32,44,-12,26,-24,
 48,-4,57,-31,24,-14,54,-40,72,-8,80,-30,60,-8,62,
 -32,104,-1,84,-16,68,-18,32,-48,72,-13,74,-38,124,
 -20,96]