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A285107 as a simple table

na(n)
01
12
21
33
44
55
61
74
85
97
106
115
127
138
141
155
166
177
185
198
209
217
224
237
247
258
267
277
2810
2911
301
316
327
337
348
357
3613
3714
3811
3913
4014
417
429
4316
4411
4513
464
479
489
496
5011
5111
5212
5313
5411
5512
569
579
588
599
6013
6114
621
637
648
657
6611
6710
6811
6915
7020
7117
7217
7314
7419
7525
7620
7713
7817
7916
8017
8113
8220
8319
8421
8526
869
8721
8818
8911
9021
9126
9217
9319
944
9511
9611
976
9817
9917
10018
10115
1029

[1,2,1,3,4,5,1,4,5,7,6,5,7,8,1,5,6,7,5,8,9,7,4,7,
 7,8,7,7,10,11,1,6,7,7,8,7,13,14,11,13,14,7,9,16,
 11,13,4,9,9,6,11,11,12,13,11,12,9,9,8,9,13,14,1,7,
 8,7,11,10,11,15,20,17,17,14,19,25,20,13,17,16,17,
 13,20,19,21,26,9,21,18,11,21,26,17,19,4,11,11,6,
 17,17,18,15,9]