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A127173 as a simple table

na(n)
11
2-2
31
4-2
50
61
71
8-2
90
101
11-2
120
130
140
151
164
17-2
18-2
190
200
211
22-2
230
240
250
260
270
281
290
301
310
32-2
330
340
350
361
371
380
39-2
400
410
420
430
440
451
464
47-2
480
490
50-2
510
520
530
540
551
56-2
570
580
590
600
610
620
630
640
650
661
67-2
684
691
70-2
710
72-2
730
740
750
760
770
781

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