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A141679 as a simple table

na(n)
11
2-1
31
4-1
5-1
61
70
8-1
9-1
101
110
120
13-1
14-1
151
160
170
180
19-1
20-1
211
220
230
240
250
26-1
27-1
281
290
300
310
320
330
34-1
35-1
361
370
380
390
400
410
420
43-1
44-1
451
460
470
480
490
500
510
520
53-1
54-1
551
560
570
580
590
600
610
620
630
64-1
65-1
661

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