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A036581 as a simple table

na(n)
00
12
21
30
41
52
60
72
81
92
100
111
120
132
141
150
161
172
180
191
200
212
221
232
240
252
261
270
281
292
300
312
321
332
340
351
360
372
381
392
400
412
421
430
441
452
460
471
480
492
501
510
521
532
540
552
561
572
580
591
600
612
621
630
641
652
660
671
680
692
701
712
720
732
741
750
761
772
780
791
800
812
821
830
841
852
860
872
881
892
900
911
920
932
941
952
960
972
981

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