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A090173 as a simple table

na(n)
00
10
21
30
41
51
60
70
81
90
100
111
121
131
141
150
161
171
181
191
201
210
220
230
241
251
260
270
280
291
300
310
321
330
340
351
360
371
381
391
401
411
421
431
441
450
460
471
481
491
501
511
521
531
540
550
561
571
581
591
601
611
621
631
641
651
660
671
681
690
701
711
721
731
741
750
761
771
780
790
800
810
820
831
841
851
861
870
880
890
900
910
921
930
940
950
961
971
981
991
1001
1010
1020
1030
1041

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