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A181059 as a simple table

na(n)
0-1
10
21
31
4-1
5-2
6-2
7-1
81
91
100
11-2
12-2
13-1
140
151
160
17-1
18-2
19-1
200
211
220
23-1
24-2
25-2
260
271
281
290
30-2
31-2
32-1
331
341
350
36-1
37-2
38-1
390
401
410
42-1
43-2
44-1
450
461
471
48-1
49-2
50-2
51-1
521
531
540
55-2
56-2
57-1
580
591
600
61-1
62-2
63-1
640
651
660
67-1
68-2
69-2
700
711
721
730
74-2
75-2
76-1
771
781
790
80-1
81-2
82-1
830

[-1,0,1,1,-1,-2,-2,-1,1,1,0,-2,-2,-1,0,1,0,-1,-2,
 -1,0,1,0,-1,-2,-2,0,1,1,0,-2,-2,-1,1,1,0,-1,-2,-1,
 0,1,0,-1,-2,-1,0,1,1,-1,-2,-2,-1,1,1,0,-2,-2,-1,0,
 1,0,-1,-2,-1,0,1,0,-1,-2,-2,0,1,1,0,-2,-2,-1,1,1,
 0,-1,-2,-1,0]