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A287447 as a simple table

na(n)
10
21
32
42
50
61
71
80
92
101
110
122
130
141
152
162
170
181
192
200
211
220
231
242
251
260
272
282
290
301
310
321
332
341
350
362
370
381
392
402
410
421
431
440
452
461
470
482
490
501
512
522
530
541
551
560
572
580
591
602
612
620
631
640
651
662
672
680
691
701
710
722
732
740
751
760
771
782
791
800
812
821
830
842
850
861

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