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A318535 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
2122
2223
2324
2425
2526
2627
2728
2829
2930
3031
3133
3234
3335
3436
3537
3638
3739
3840
3941
4042
4144
4245
4346
4447
4548
4649
4750
4851
4952
5053
5155
5256
5357
5458
5559
5660
5761
5862
5963
6064
6166
6267
6368
6469
6570
6671
6772
6873
6974
7075
7177
7278
7379
7480
7581
7682
7783
7884
7985
8086
8188
8289

[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,
 20,22,23,24,25,26,27,28,29,30,31,33,34,35,36,37,
 38,39,40,41,42,44,45,46,47,48,49,50,51,52,53,55,
 56,57,58,59,60,61,62,63,64,66,67,68,69,70,71,72,
 73,74,75,77,78,79,80,81,82,83,84,85,86,88,89]