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A257977 as a simple table

na(n)
11
21
31
42
51
62
71
82
93
102
111
124
131
142
153
164
171
184
191
204
213
222
231
246
255
262
273
284
291
306
311
324
333
342
355
366
371
382
393
408
411
426
431
444
457
462
471
488
497
506
513
524
531
546
555
568
573
582
591
6010
611
622
639
648
655
666
671
684
693
7010
711
729
731
742
757
764
777
786
791
8010
819
822
831
8412

[1,1,1,2,1,2,1,2,3,2,1,4,1,2,3,4,1,4,1,4,3,2,1,6,
 5,2,3,4,1,6,1,4,3,2,5,6,1,2,3,8,1,6,1,4,7,2,1,8,7,
 6,3,4,1,6,5,8,3,2,1,10,1,2,9,8,5,6,1,4,3,10,1,9,1,
 2,7,4,7,6,1,10,9,2,1,12]