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A366521 as a simple table

na(n)
11
21
31
42
51
62
71
82
93
102
111
123
131
142
153
162
171
183
191
202
213
222
231
243
255
262
273
282
291
305
311
322
333
342
355
366
371
382
393
405
411
426
431
442
455
462
471
486
497
505
513
522
531
546
555
567
573
582
591
606
611
622
637
642
655
666
671
682
693
707
711
726
731
742
755
762
777
786
791
805
813
822
831
847
855
862
873
882
891
906
917
922
933
942
955
966
971
987
993
10010

[1,1,1,2,1,2,1,2,3,2,1,3,1,2,3,2,1,3,1,2,3,2,1,3,
 5,2,3,2,1,5,1,2,3,2,5,6,1,2,3,5,1,6,1,2,5,2,1,6,7,
 5,3,2,1,6,5,7,3,2,1,6,1,2,7,2,5,6,1,2,3,7,1,6,1,2,
 5,2,7,6,1,5,3,2,1,7,5,2,3,2,1,6,7,2,3,2,5,6,1,7,3,
 10]