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A128973 as a simple table

na(n)
01
10
21
31
41
51
61
71
80
91
101
110
120
131
141
150
161
171
180
190
201
211
220
230
241
251
261
271
280
291
301
310
321
331
340
351
361
370
380
390
400
410
420
431
441
450
461
470
480
490
500
511
520
530
541
551
561
571
580
590
601
611
621
631
641
651
661
671
680
691
701
710
721
731
741
751
760
771
781
790
800
810
820
830
840
851
861
870
880
891
901
910
921
930
940
950
960
971
980
990
1001
1011
1020
1030
1041

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