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A301849 as a simple table

na(n)
0-1
10
21
30
4-1
51
61
7-1
8-1
90
101
111
12-1
130
141
15-1
16-1
170
181
190
20-1
211
221
230
24-1
25-1
261
271
28-1
290
301
31-1
32-1
330
341
350
36-1
371
381
39-1
40-1
410
421
431
44-1
450
461
470
48-1
49-1
501
510
52-1
531
541
550
56-1
57-1
581
591
60-1
610
621
63-1
64-1
650
661
670
68-1
691
701
71-1
72-1
730
741
751
76-1
770
781
79-1
80-1
810
821
830
84-1
851
861
870
88-1
89-1
901
911
92-1
930
941
950
96-1
97-1
981
990

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