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A228869 as a simple table

na(n)
11
22
33
44
55
67
78
89
910
1011
1113
1214
1315
1416
1517
1619
1721
1822
1923
2025
2126
2227
2328
2429
2531
2632
2733
2834
2935
3037
3138
3239
3341
3443
3544
3645
3746
3847
3949
4050
4151
4252
4353
4455
4556
4657
4758
4859
4961
5062
5163
5264
5365
5467
5568
5669
5770
5871
5973
6074
6175
6276
6377
6479
6581
6682
6783

[1,2,3,4,5,7,8,9,10,11,13,14,15,16,17,19,21,22,23,
 25,26,27,28,29,31,32,33,34,35,37,38,39,41,43,44,
 45,46,47,49,50,51,52,53,55,56,57,58,59,61,62,63,
 64,65,67,68,69,70,71,73,74,75,76,77,79,81,82,83]