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A071499 as a simple table

na(n)
11
20
32
41
53
62
71
83
94
105
113
124
132
143
151
162
175
181
192
205
217
224
235
247
254
268
272
289
296
302
319
326
338
347
356
364
377
382
391
4010
415
428
433
445
452
464
475
482
494
508
512
5212
533
5411
554
5614
578
582
5912
605
6115
6211
6316
6415
6517
662
6718
6817
6914
701
714
722
7312
744
7519
7612
773
7813
792
8011
8113

[1,0,2,1,3,2,1,3,4,5,3,4,2,3,1,2,5,1,2,5,7,4,5,7,
 4,8,2,9,6,2,9,6,8,7,6,4,7,2,1,10,5,8,3,5,2,4,5,2,
 4,8,2,12,3,11,4,14,8,2,12,5,15,11,16,15,17,2,18,
 17,14,1,4,2,12,4,19,12,3,13,2,11,13]