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A156685 as a simple table

na(n)
10
20
30
40
51
61
71
81
91
101
111
121
132
142
152
162
173
183
193
203
213
223
233
243
254
264
274
284
295
305
315
325
335
345
355
365
376
386
396
406
417
427
437
447
457
467
477
487
497
507
517
527
538
548
558
568
578
588
598
608
619
629
639
649
6511
6611
6711
6811
6911
7011
7111
7211
7312
7412
7512

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