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A039113 as a simple table

na(n)
11
23
34
45
56
67
78
89
911
1013
1114
1215
1316
1417
1518
1619
1720
1831
1933
2034
2135
2236
2337
2438
2539
2641
2743
2844
2945
3046
3147
3248
3349
3451
3553
3654
3755
3856
3957
4058
4159
4261
4363
4464
4565
4666
4767
4868
4969
5071
5173
5274
5375
5476
5577
5678
5779
5881
5983
6084
6185
6286
6387
6488
6589
6691
6793
6894
6995
7096

[1,3,4,5,6,7,8,9,11,13,14,15,16,17,18,19,20,31,33,
 34,35,36,37,38,39,41,43,44,45,46,47,48,49,51,53,
 54,55,56,57,58,59,61,63,64,65,66,67,68,69,71,73,
 74,75,76,77,78,79,81,83,84,85,86,87,88,89,91,93,
 94,95,96]