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A284763 as a simple table

na(n)
11
22
33
45
56
67
78
89
910
1011
1113
1214
1315
1417
1519
1621
1722
1823
1925
2026
2129
2230
2331
2432
2533
2634
2735
2837
2938
3039
3140
3241
3342
3443
3545
3646
3747
3849
3951
4053
4155
4256
4357
4458
4559
4661
4762
4863
4965
5066
5167
5269
5370
5471
5573
5674
5775
5877
5978
6079
6182
6283
6385
6486
6587
6688
6789

[1,2,3,5,6,7,8,9,10,11,13,14,15,17,19,21,22,23,25,
 26,29,30,31,32,33,34,35,37,38,39,40,41,42,43,45,
 46,47,49,51,53,55,56,57,58,59,61,62,63,65,66,67,
 69,70,71,73,74,75,77,78,79,82,83,85,86,87,88,89]