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A175808 as a simple table

na(n)
11
22
33
44
56
66
77
88
911
1011
1113
1213
1314
1414
1515
1616
1720
1820
1923
2023
2125
2225
2328
2428
2528
2628
2729
2829
2930
3030
3131
3232
3337
3437
3541
3641
3744
3844
3948
4048
4150
4250
4352
4452
4555
4655
4759
4859
4959
5059
5159
5259
5359
5459
5560
5660
5760
5860
5961
6061
6162
6262
6363
6464

[1,2,3,4,6,6,7,8,11,11,13,13,14,14,15,16,20,20,23,
 23,25,25,28,28,28,28,29,29,30,30,31,32,37,37,41,
 41,44,44,48,48,50,50,52,52,55,55,59,59,59,59,59,
 59,59,59,60,60,60,60,61,61,62,62,63,64]