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A014149 as a simple table

na(n)
01
10
2-1
30
41
50
6-1
70
81
90
100
110
120
130
141
150
16-1
170
181
190
20-1
210
221
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
430
440
450
460
470
480
490
500
510
520
530
540
550
560
570
580
590
600
610
620
630
640
650
660
670
680
690
70-1
710
721
730
74-1
750
761
770
78-1
790
800

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