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A147768 as a simple table

na(n)
01
1-1
21
31
4-1
51
60
71
8-1
91
101
110
121
13-1
141
150
161
170
181
19-1
201
212
220
231
240
251
26-1
271
280
292
300
311
320
331
34-1
351
363
370
382
390
401
410
421
43-1
441
451
463
470
482
490
501
510
521
53-1
541
554
561
573
580
592
600
611
620
631
64-1
651
662
674
681
693
700
712
720
731
740
751
76-1
771

[1,-1,1,1,-1,1,0,1,-1,1,1,0,1,-1,1,0,1,0,1,-1,1,2,
 0,1,0,1,-1,1,0,2,0,1,0,1,-1,1,3,0,2,0,1,0,1,-1,1,
 1,3,0,2,0,1,0,1,-1,1,4,1,3,0,2,0,1,0,1,-1,1,2,4,1,
 3,0,2,0,1,0,1,-1,1]