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A215530 as a simple table

na(n)
00
11
20
31
40
50
61
70
81
90
100
110
121
130
141
150
160
171
180
191
200
210
220
230
241
250
261
270
280
291
300
311
320
330
340
351
360
371
380
390
401
410
421
430
440
450
460
470
481
490
501
510
520
531
540
551
560
570
580
591
600
611
620
630
641
650
661
670
680
690
700
711
720
731
740
750
761
770
781
790
800
810
821
830
841
850
860

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