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A011681 as a simple table

na(n)
00
10
20
30
40
50
61
71
80
90
101
110
121
130
140
150
161
171
181
190
200
210
220
231
241
251
261
271
280
290
300
311
320
331
341
350
361
371
380
390
401
411
420
430
440
451
461
470
481
490
500
511
521
530
541
551
561
571
581
591
601
610
621
631
641
650
660
671
681
691
701
710
721
730
740
750
760
770
781
790
801
810
821
831
841
851
860
870
881
890
900
911
920
930
940
951
960
970
980
990
1001
1010

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