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A165586 as a simple table

na(n)
00
11
2-1
3-1
41
51
61
71
8-1
91
10-1
111
12-1
131
14-1
15-1
161
171
18-1
19-1
201
21-1
22-1
231
241
251
26-1
27-1
281
291
301
311
32-1
33-1
34-1
351
361
371
381
39-1
40-1
41-1
421
431
441
451
46-1
471
48-1
491
50-1
51-1
521
53-1
541
551
56-1
571
58-1
59-1
60-1
611
62-1
631
641
651
661
671
681
69-1
70-1
71-1
72-1
73-1
74-1
75-1
76-1
771
781
791
801
811
821
831

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