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A198790 as a simple table

na(n)
11
22
31
43
53
62
72
81
91
104
111
121
132
142
153
162
173
183
194
204
211
225
233
244
251
262
274
284
291
302
314
325
333
342
355
361
373
384
391
401
413
424
431
442
455
464
472
483
495
501
513
523
535
541
553
564
572
581
594
605
612
623
635
645
652
663
675
681
694
703
711
722
734
745
752
762
774
785
792
803
811
826
835
841
855
861
874

[1,2,1,3,3,2,2,1,1,4,1,1,2,2,3,2,3,3,4,4,1,5,3,4,
 1,2,4,4,1,2,4,5,3,2,5,1,3,4,1,1,3,4,1,2,5,4,2,3,5,
 1,3,3,5,1,3,4,2,1,4,5,2,3,5,5,2,3,5,1,4,3,1,2,4,5,
 2,2,4,5,2,3,1,6,5,1,5,1,4]