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A117945 as a simple table

na(n)
01
10
21
3-1
40
51
60
70
80
91
100
110
120
130
141
150
160
170
18-1
190
201
21-1
220
230
240
250
260
271
280
29-1
300
310
320
330
340
351
361
370
38-1
390
400
410
42-1
430
441
450
460
470
480
490
500
510
520
530
541
550
560
570
580
590
600
610
620
630
640
651
660
670
680
690
700
710
720
730
740
75-1
760
771
780
790
800
810
820
830
840
850
860
870
880
890
901
910
920
930
940
950
960
970
980
990
1000
1010
1020
1030
1041

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