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A271420 as a simple table

na(n)
10
20
30
41
50
61
70
81
92
101
110
121
130
141
152
161
170
181
193
201
212
221
230
241
250
261
272
281
290
301
314
321
332
341
353
361
370
381
392
401
410
421
430
441
452
461
470
481
493
501
512
521
530
541
555
561
572
581
594
601
610
621
632
641
653
661
670
681
692
701
710
721
736
741
752
761
770
781
793
801
812
821
830
841
854
861

[0,0,0,1,0,1,0,1,2,1,0,1,0,1,2,1,0,1,3,1,2,1,0,1,
 0,1,2,1,0,1,4,1,2,1,3,1,0,1,2,1,0,1,0,1,2,1,0,1,3,
 1,2,1,0,1,5,1,2,1,4,1,0,1,2,1,3,1,0,1,2,1,0,1,6,1,
 2,1,0,1,3,1,2,1,0,1,4,1]