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A261812 as a simple table

na(n)
1-2
20
3-1
41
50
60
7-1
81
90
100
110
12-1
131
140
150
160
17-1
181
190
200
21-1
221
230
240
250
26-1
271
280
290
300
31-1
321
330
340
35-1
361
370
380
390
40-1
411
420
430
44-1
451
460
470
480
49-1
501
510
520
530
54-1
551
560
570
58-1
591
600
610
620
63-1
641
650
660
670
68-1
691
700
710
72-1
731
740
750
760
77-1
781
790
800
810
82-1
831
840
850
86-1
871
880
890
900
91-1
921
930
940
950
96-1
971
980
990
100-1
1011
1020
1030
1040
105-1
1061
1070
1080
1090
110-1
1111
1120
1130
114-1
1151
1160
1170
1180
119-1
1201
1210
1220
1230
124-1
1251
1260
1270
128-1
1291
1300
1310
1320
133-1
1341
1350
1360

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