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A305818 as a simple table

na(n)
10
21
31
42
51
63
71
82
92
103
111
124
131
142
153
163
171
185
191
203
212
223
231
245
252
262
273
283
291
306
311
323
333
342
352
366
371
382
392
405
411
426
431
443
455
463
471
485
491
503
512
523
531
546
553
564
572
583
591
608
611
622
634
643
652
666
671
682
693
705
711
728
731
742
754
762
772
786
791
805
813
823
831
846
852
862
873
885
891
909
911
923
932
942
952
966
971
983
995
1005
1011
1025
1031
1044
1056

[0,1,1,2,1,3,1,2,2,3,1,4,1,2,3,3,1,5,1,3,2,3,1,5,
 2,2,3,3,1,6,1,3,3,2,2,6,1,2,2,5,1,6,1,3,5,3,1,5,1,
 3,2,3,1,6,3,4,2,3,1,8,1,2,4,3,2,6,1,2,3,5,1,8,1,2,
 4,2,2,6,1,5,3,3,1,6,2,2,3,5,1,9,1,3,2,2,2,6,1,3,5,
 5,1,5,1,4,6]