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A156660 as a simple table

na(n)
00
10
21
31
40
51
60
70
80
90
100
111
120
130
140
150
160
170
180
190
200
210
220
231
240
250
260
270
280
291
300
310
320
330
340
350
360
370
380
390
400
411
420
430
440
450
460
470
480
490
500
510
520
531
540
550
560
570
580
590
600
610
620
630
640
650
660
670
680
690
700
710
720
730
740
750
760
770
780
790
800
810
820
831
840
850
860
870
880
891
900
910
920
930
940
950
960
970
980
990
1000
1010
1020
1030
1040

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