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A284878 as a simple table

na(n)
10
21
30
41
51
60
70
81
90
101
111
120
130
141
151
160
170
181
190
201
210
221
231
240
250
261
270
281
291
300
310
321
331
340
350
361
370
381
390
401
411
420
430
441
451
460
470
481
490
501
510
521
531
540
550
561
570
581
591
600
610
621
630
641
651
660
670
681
691
700
710
721
730
741
750
761
771
780
790
801
810
821
831
840
850
861

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