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A089495 as a simple table

na(n)
1-1
20
31
40
50
61
70
80
90
10-1
110
121
13-1
140
150
160
170
181
190
200
211
220
230
240
250
26-1
270
280
29-1
30-1
310
320
33-1
340
350
360
371
380
390
40-1
410
42-1
430
441
450
460
470
480
490
50-1
510
520
530
540
55-1
560
570
580
591
60-1
610
620
630
640
651
66-1
670
680
690
700
71-1
720
730
74-1
750
760
771
781
79-1
80-1
810
821
830
84-1
850
860
870
881
891
900
910
920
930
940
950
960
971
980
990
1001
1010
1020
1030
1041
1050
1060
1070
1080
1090
110-1
1110
1121
113-1
1140
1150
116-1
1170
1180

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