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A339399 as a simple table

na(n)
11
21
31
42
51
63
72
82
91
104
112
123
131
145
152
164
173
183
191
206
212
225
233
244
251
267
272
286
293
305
314
324
331
348
352
367
373
386
394
405
411
429
432
448
453
467
474
486
495
505
511
5210
532
549
553
568
574
587
595
606
611
6211
632
6410
653
669
674
688
695
707
716
726
731
7412
752
7611
773
7810
794
809
815
828
836
847
851
8613
872
8812
893
9011

[1,1,1,2,1,3,2,2,1,4,2,3,1,5,2,4,3,3,1,6,2,5,3,4,
 1,7,2,6,3,5,4,4,1,8,2,7,3,6,4,5,1,9,2,8,3,7,4,6,5,
 5,1,10,2,9,3,8,4,7,5,6,1,11,2,10,3,9,4,8,5,7,6,6,
 1,12,2,11,3,10,4,9,5,8,6,7,1,13,2,12,3,11]