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A016415 as a simple table

na(n)
01
1-1
21
30
40
50
60
71
8-1
91
100
111
12-1
131
140
150
160
170
181
19-1
201
21-1
221
23-1
240
250
260
270
28-1
291
30-1
310
32-1
330
340
35-1
360
370
380
39-1
400
410
420
43-1
440
451
46-1
470
480
491
50-1
510
521
530
540
550
561
570
580
590
601
610
620
630
641
650
660
670
681
690
70-1
711
720
730
74-1
751
760
77-1
780
790
800

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