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A106667 as a simple table

na(n)
1-1
21
31
4-1
51
6-1
71
8-1
9-1
101
11-1
12-1
131
140
15-1
16-1
171
180
19-1
201
210
220
23-1
24-1
250
261
270
281
29-1
30-1
31-1
32-1
331
34-1
351
360
37-1
380
39-1
400
411
42-1
431
440
451
46-1
47-1
480
491
500
51-1
521
530
54-1
55-1
56-1
571
580
590
601
610
62-1
63-1
641
650
66-1
670
68-1
691
700
71-1
72-1
730
740
75-1
760
77-1
780
79-1
80-1
811
820
831
840
850
86-1
87-1
880
891
900
91-1
92-1
93-1
94-1

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