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A168186 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1213
1314
1415
1516
1617
1718
1819
1920
2021
2122
2223
2325
2426
2527
2628
2729
2830
2931
3032
3133
3234
3335
3437
3538
3639
3740
3841
3942
4043
4144
4245
4346
4447
4549
4650
4751
4852
4953
5054
5155
5256
5357
5458
5559
5661
5762
5863
5964
6065
6166
6267
6368
6469
6570
6671
6773
6874
6975
7076
7177
7278

[1,2,3,4,5,6,7,8,9,10,11,13,14,15,16,17,18,19,20,
 21,22,23,25,26,27,28,29,30,31,32,33,34,35,37,38,
 39,40,41,42,43,44,45,46,47,49,50,51,52,53,54,55,
 56,57,58,59,61,62,63,64,65,66,67,68,69,70,71,73,
 74,75,76,77,78]