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A138950 as a simple table

na(n)
11
21
3-3
41
52
6-3
70
81
91
102
110
12-3
132
140
15-6
161
172
181
190
202
210
220
230
24-3
253
262
27-3
280
292
30-6
310
321
330
342
350
361
372
380
39-6
402
412
420
430
440
452
460
470
48-3
491
503
51-6
522
532
54-3
550
560
570
582
590
60-6
612
620
630
641
654
660
670
682
690
700
710
721
732
742
75-9
760
770
78-6
790
802
811
822

[1,1,-3,1,2,-3,0,1,1,2,0,-3,2,0,-6,1,2,1,0,2,0,0,
 0,-3,3,2,-3,0,2,-6,0,1,0,2,0,1,2,0,-6,2,2,0,0,0,2,
 0,0,-3,1,3,-6,2,2,-3,0,0,0,2,0,-6,2,0,0,1,4,0,0,2,
 0,0,0,1,2,2,-9,0,0,-6,0,2,1,2]