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A038770 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1212
1313
1414
1515
1616
1717
1818
1919
2020
2121
2222
2324
2425
2526
2628
2730
2831
2932
3033
3135
3236
3339
3440
3541
3642
3744
3845
3948
4050
4151
4252
4355
4460
4561
4662
4763
4864
4965
5066
5170
5271
5372
5475
5577
5680
5781
5882
5984
6085
6188
6290
6391
6492
6593
6695
6796
6899
69100
70101
71102

[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,
 20,21,22,24,25,26,28,30,31,32,33,35,36,39,40,41,
 42,44,45,48,50,51,52,55,60,61,62,63,64,65,66,70,
 71,72,75,77,80,81,82,84,85,88,90,91,92,93,95,96,
 99,100,101,102]