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A007968 as a simple table

na(n)
00
10
21
32
40
51
61
72
82
90
101
112
121
131
141
152
160
171
181
192
201
211
221
232
242
250
261
272
281
291
301
312
322
331
341
352
360
371
381
391
402
411
421
432
441
451
461
472
482
490
501
512
521
531
541
551
561
571
581
592
601
611
621
632
640
651
661
672
681
691
701
712
721
731
741
752
761
771
781
792
802
810
821
832
841
851
861
872
882
891
901
912
921
931
941
951
962
971
981
992
1000
1011
1021
1032
1042

[0,0,1,2,0,1,1,2,2,0,1,2,1,1,1,2,0,1,1,2,1,1,1,2,
 2,0,1,2,1,1,1,2,2,1,1,2,0,1,1,1,2,1,1,2,1,1,1,2,2,
 0,1,2,1,1,1,1,1,1,1,2,1,1,1,2,0,1,1,2,1,1,1,2,1,1,
 1,2,1,1,1,2,2,0,1,2,1,1,1,2,2,1,1,2,1,1,1,1,2,1,1,
 2,0,1,1,2,2]