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A047971 as a simple table

na(n)
01
11
21
31
41
51
61
72
82
92
101
111
121
131
142
153
163
173
183
192
201
211
221
231
242
253
264
274
285
294
304
313
322
331
341
351
361
372
383
394
405
416
426
436
446
455
464
473
482
491
501
511
521
532
543
554
565
577
587
598
608
618
627
637
645
654
663
672
681
691

[1,1,1,1,1,1,1,2,2,2,1,1,1,1,2,3,3,3,3,2,1,1,1,1,
 2,3,4,4,5,4,4,3,2,1,1,1,1,2,3,4,5,6,6,6,6,5,4,3,2,
 1,1,1,1,2,3,4,5,7,7,8,8,8,7,7,5,4,3,2,1,1]