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A189921 as a simple table

na(n)
11
20
31
40
51
61
70
80
90
101
111
121
130
140
151
160
171
180
190
201
211
221
231
240
250
261
271
280
291
300
311
320
331
341
350
360
370
380
390
401
411
421
431
441
450
460
471
481
491
500
511
520
531
541
550
561
571
580
591
600
610
620
631
640
651
661
671
680
690
700
711
720
730
741
750
760
770
781
791
801
811
821
831
840
850
861
871
881
891
900
911
920
931
941
951
960
971
981
990
1001
1011
1020

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