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A115247 as a simple table

na(n)
00
10
21
30
42
51
60
72
84
91
100
111
121
136
141
150
162
171
184
191
206
210
222
234
241
252
262
278
280
291
301
312
321
334
346
351
360
373
384
391
402
417
421
436
441
450
461
474
486
492
501
511
522
531
541
550
561
571
588
592
604
612
626
634
643
651
660
672
684
697
703
711
721
734
741
751
766
771
780
792
801
812
821
836
841
852
864
872
887
898
906
910
922
934
942
951
961
976
984
994

[0,0,1,0,2,1,0,2,4,1,0,1,1,6,1,0,2,1,4,1,6,0,2,4,
 1,2,2,8,0,1,1,2,1,4,6,1,0,3,4,1,2,7,1,6,1,0,1,4,6,
 2,1,1,2,1,1,0,1,1,8,2,4,2,6,4,3,1,0,2,4,7,3,1,1,4,
 1,1,6,1,0,2,1,2,1,6,1,2,4,2,7,8,6,0,2,4,2,1,1,6,4,
 4]