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A333525 as a simple table

na(n)
10
20
30
41
51
61
71
81
92
102
112
122
132
142
152
162
172
182
192
202
212
222
232
242
253
263
273
283
293
303
313
323
333
343
353
363
373
383
393
403
413
423
433
443
453
463
473
483
493
503

[0,0,0,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
 3]