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A049819 as a simple table

na(n)
10
20
31
41
52
61
72
83
92
102
113
123
134
143
153
163
173
184
194
203
215
223
234
243
254
264
274
284
295
305
315
324
334
346
354
364
375
384
395
405
415
425
435
445
455
465
476
485
496
506
515
525
535
544
557
565
575
585
595
606
615
625
635
646
656
666
676
686
696
705

[0,0,1,1,2,1,2,3,2,2,3,3,4,3,3,3,3,4,4,3,5,3,4,3,
 4,4,4,4,5,5,5,4,4,6,4,4,5,4,5,5,5,5,5,5,5,5,6,5,6,
 6,5,5,5,4,7,5,5,5,5,6,5,5,5,6,6,6,6,6,6,5]