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A205838 as a simple table

na(n)
11
21
33
42
51
63
74
81
93
104
116
122
135
141
153
164
176
187
191
203
214
226
237
249
252
265
278
281
293
304
316
327
339
3410
351
363
374
386
397
409
4110
4212
432
445
458
4611
471
483
494
506
517
529
5310
5412
5513
561
573
584
596
607

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