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A156876 as a simple table

na(n)
10
21
32
42
53
63
74
84
94
104
115
125
135
145
155
165
175
185
195
205
215
225
236
246
256
266
276
286
297
307
317
327
337
347
357
367
377
387
397
407
418
428
438
448
458
468
479
489
499
509
519
529
5310
5410
5510
5610
5710
5810
5911
6011
6111
6211
6311
6411
6511
6611
6711
6811
6911
7011
7111
7211
7311
7411
7511
7611
7711
7811
7911
8011
8111
8211
8312
8412
8512
8612
8712

[0,1,2,2,3,3,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,6,6,
 6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,9,9,9,
 9,9,9,10,10,10,10,10,10,11,11,11,11,11,11,11,11,
 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,
 12,12,12,12,12]