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A287438 as a simple table

na(n)
10
21
32
41
52
60
72
81
90
101
112
120
132
141
150
160
171
182
192
201
210
221
232
240
250
261
272
281
292
300
312
321
330
340
351
362
372
381
390
401
412
420
430
441
452
460
471
482
491
502
510
522
531
540
552
561
570
581
592
600
610
621
632
641
652
660
672
681
690
700
711
722
730
741
752
761
772
780
792
801
810
821
832
840
852
861

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