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A331541 as a simple table

na(n)
11
21
32
41
52
61
72
81
92
103
114
121
132
141
154
163
175
183
194
203
214
227
232
243
255
263
274
283
298
309
318
323
337
343
354
363
378
381
392
409
412
429
432
443
454
463
4714
481
4913
507
5110
529
5311
543
552
567
5710
581
592
601
6113
625
6314
641
652
661
6713
683
6911
7019
7110
727
732
749
752
7611
7719
789
7919
8023
814
823

[1,1,2,1,2,1,2,1,2,3,4,1,2,1,4,3,5,3,4,3,4,7,2,3,
 5,3,4,3,8,9,8,3,7,3,4,3,8,1,2,9,2,9,2,3,4,3,14,1,
 13,7,10,9,11,3,2,7,10,1,2,1,13,5,14,1,2,1,13,3,11,
 19,10,7,2,9,2,11,19,9,19,23,4,3]