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A279817 as a simple table

na(n)
1-1
21
31
40
51
60
71
8-1
90
101
111
12-2
131
141
15-1
161
171
18-3
191
20-3
211
222
231
24-6
250
260
270
280
291
30-2
311
32-2
33-1
345
35-1
36-4
371
383
390
403
411
42-3
431
44-7
45-3
4610
471
48-9
490
50-10
512
52-4
531
54-7
552
566
57-1
584
591
60-25
611
622
63-2
644
65-1
66-11
671
686
69-1
7013
711
72-20
731
74-3
75-4
760

[-1,1,1,0,1,0,1,-1,0,1,1,-2,1,1,-1,1,1,-3,1,-3,1,
 2,1,-6,0,0,0,0,1,-2,1,-2,-1,5,-1,-4,1,3,0,3,1,-3,
 1,-7,-3,10,1,-9,0,-10,2,-4,1,-7,2,6,-1,4,1,-25,1,
 2,-2,4,-1,-11,1,6,-1,13,1,-20,1,-3,-4,0]