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A321926 as a simple table

na(n)
11
21
3-1
41
51
61
7-1
81
91
100
11-1
121
132
141
151
160
17-1
181
19-1
201
212
22-1
23-1
241
251
26-1
270
280
291
301
310
321
33-1
34-1
351
362
373
383
391
401
41-1
420
430
441
45-1
461
471
480
49-1
501
510
520
53-1
541
55-1
561
57-1
580
591
60-1
611
620
631
641
65-2
660
671
681
691
70-1
71-1
720
731
741
751
762
771
78-1
790
80-2

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