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A291615 as a simple table

na(n)
10
21
32
41
52
63
73
83
92
103
113
122
133
141
153
163
173
182
195
203
212
222
234
245
255
265
272
283
293
303
314
322
336
343
3511
364
373
388
399
408
4110
427
436
443
459
466
476
486
4911
5010
5111
529
539
549
5512
5611
5713
583
596
6010
617
6215
635
646
657
6613
677
688
6914
7010
7113
7219
7312
7414
7511
7618
7715
7811
7915
808

[0,1,2,1,2,3,3,3,2,3,3,2,3,1,3,3,3,2,5,3,2,2,4,5,
 5,5,2,3,3,3,4,2,6,3,11,4,3,8,9,8,10,7,6,3,9,6,6,6,
 11,10,11,9,9,9,12,11,13,3,6,10,7,15,5,6,7,13,7,8,
 14,10,13,19,12,14,11,18,15,11,15,8]