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A115105 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1212
1313
1414
1515
1617
1718
1819
1920
2021
2122
2223
2324
2425
2526
2627
2728
2829
2931
3032
3133
3234
3335
3436
3537
3638
3739
3840
3941
4043
4144
4245
4346
4447
4549
4650
4751
4852
4953
5054
5155
5256
5357
5458
5559
5661
5762
5863
5965
6067
6168
6269
6371
6472
6573
6674
6775
6876
6977
7079
7182
7283

[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,17,18,19,20,
 21,22,23,24,25,26,27,28,29,31,32,33,34,35,36,37,
 38,39,40,41,43,44,45,46,47,49,50,51,52,53,54,55,
 56,57,58,59,61,62,63,65,67,68,69,71,72,73,74,75,
 76,77,79,82,83]