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A174901 as a simple table

na(n)
11
22
33
44
54
64
74
84
96
106
116
126
136
146
156
166
176
186
196
206
216
226
236
246
256
266
276
286
296
306
316
326
336
346
356
366
378
388
398
408
418
428
438
448
458
468
478
488
498
508

[1,2,3,4,4,4,4,4,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
 6,6,6,6,6,6,6,6,6,6,6,6,8,8,8,8,8,8,8,8,8,8,8,8,8,
 8]