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A040290 as a simple table

na(n)
017
11
21
34
41
51
634
71
81
94
101
111
1234
131
141
154
161
171
1834
191
201
214
221
231
2434
251
261
274
281
291
3034
311
321
334
341
351
3634
371
381
394
401
411
4234
431
441
454
461
471
4834
491
501
514
521
531
5434
551
561
574
581
591
6034
611
621
634
641
651
6634
671
681
694
701
711
7234
731
741
754
761
771
7834
791
801
814
821
831
8434
851
861

[17,1,1,4,1,1,34,1,1,4,1,1,34,1,1,4,1,1,34,1,1,4,
 1,1,34,1,1,4,1,1,34,1,1,4,1,1,34,1,1,4,1,1,34,1,1,
 4,1,1,34,1,1,4,1,1,34,1,1,4,1,1,34,1,1,4,1,1,34,1,
 1,4,1,1,34,1,1,4,1,1,34,1,1,4,1,1,34,1,1]