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A015803 as a simple table

na(n)
01
11
20
3-1
4-1
50
61
71
80
9-1
10-1
110
121
130
14-1
15-1
160
171
181
190
20-1
21-1
220
230
240
250
261
271
280
29-1
30-1
310
321
331
340
35-1
360
371
381
390
40-1
41-1
420
431
441
450
460
470
480
49-1
50-1
510
521
531
540
55-1
56-1
570
581
590
60-1
61-1
620
631
641
650
66-1
67-1
680
691
701
710
720
730
740
750
760
770
780
790
800

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