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A169991 as a simple table

na(n)
01
11
20
31
41
51
61
71
82
92
102
112
123
133
143
154
165
174
184
195
205
216
225
236
247
257
266
277
288
297
307
317
328
337
347
357
368
377
386
397
407
416
425
436
445
455
464
474
485
494
503
513
523
532
542
552
562
571
581
591
601
611
620
631
641

[1,1,0,1,1,1,1,1,2,2,2,2,3,3,3,4,5,4,4,5,5,6,5,6,
 7,7,6,7,8,7,7,7,8,7,7,7,8,7,6,7,7,6,5,6,5,5,4,4,5,
 4,3,3,3,2,2,2,2,1,1,1,1,1,0,1,1]