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A058688 as a simple table

na(n)
-11
00
10
2-1
31
4-1
51
6-1
72
8-2
92
10-2
113
12-3
133
14-4
155
16-5
175
18-6
197
20-8
218
22-10
2312
24-12
2513
26-15
2717
28-18
2919
30-22
3125
32-27
3328
34-32
3536
36-38
3741
38-46
3951
40-54
4158
42-64
4371
44-76
4581
46-89
4799
48-105
49112
50-123
51134
52-143
53153
54-167
55182
56-194
57207
58-225
59244
60-260
61277
62-301
63325
64-346
65369
66-398
67429
68-458

[1,0,0,-1,1,-1,1,-1,2,-2,2,-2,3,-3,3,-4,5,-5,5,-6,
 7,-8,8,-10,12,-12,13,-15,17,-18,19,-22,25,-27,28,
 -32,36,-38,41,-46,51,-54,58,-64,71,-76,81,-89,99,
 -105,112,-123,134,-143,153,-167,182,-194,207,-225,
 244,-260,277,-301,325,-346,369,-398,429,-458]