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A073097 as a simple table

na(n)
0-1
1-1
20
3-1
40
51
60
71
80
91
100
11-1
120
13-1
140
151
160
171
180
19-1
200
211
220
231
240
25-1
260
27-1
280
29-1
300
311
320
331
340
35-1
360
371
380
391
400
411
420
43-1
440
45-1
460
471
480
49-1
500
51-1
520
531
540
551
560
57-1
580
59-1
600
61-1
620
631
640
651
660
67-1
680
691
700
711
720
731
740
75-1
760
77-1
780
791
800
811
820
83-1
840
851
860
871
880
89-1
900
91-1
920
93-1
940
951
960
97-1
980
99-1

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