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A289508 as a simple table

na(n)
10
21
32
41
53
61
74
81
92
101
115
121
136
141
151
161
177
181
198
201
212
221
239
241
253
261
272
281
2910
301
3111
321
331
341
351
361
3712
381
392
401
4113
421
4314
441
451
461
4715
481
494
501
511
521
5316
541
551
561
572
581
5917
601
6118
621
632
641
653
661
6719
681
691
701
7120
721
7321
741
751
761
771
781
7922
801
812
821
8323

[0,1,2,1,3,1,4,1,2,1,5,1,6,1,1,1,7,1,8,1,2,1,9,1,
 3,1,2,1,10,1,11,1,1,1,1,1,12,1,2,1,13,1,14,1,1,1,
 15,1,4,1,1,1,16,1,1,1,2,1,17,1,18,1,2,1,3,1,19,1,
 1,1,20,1,21,1,1,1,1,1,22,1,2,1,23]