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A087061 as a simple table

na(n)
00
11
21
32
41
52
63
72
82
93
104
113
122
133
144
155
164
173
183
194
205
216
225
234
243
254
265
276
287
296
305
314
324
335
346
357
368
377
386
395
404
415
426
437
448
459
468
477
486
495
505
516
527
538
549
5510
569
578
587
596
605
616
627
638
649
6510
6611
6711
689
698
707
716
726
737
748
759
7611
7711
7812
7911
8012
819
828
837
846
857
868
879
8812
8911
9012
9113
9212
9312
9413
959
968

[0,1,1,2,1,2,3,2,2,3,4,3,2,3,4,5,4,3,3,4,5,6,5,4,
 3,4,5,6,7,6,5,4,4,5,6,7,8,7,6,5,4,5,6,7,8,9,8,7,6,
 5,5,6,7,8,9,10,9,8,7,6,5,6,7,8,9,10,11,11,9,8,7,6,
 6,7,8,9,11,11,12,11,12,9,8,7,6,7,8,9,12,11,12,13,
 12,12,13,9,8]