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A178160 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1011
1112
1213
1314
1415
1516
1621
1722
1823
1924
2025
2126
2227
2331
2432
2533
2634
2735
2836
2937
3042
3143
3244
3345
3446
3547
3648
3752
3853
3954
4055
4156
4257
4358
4462
4563
4664
4765
4866
4967
5068
5172
5273
5374
5475
5576
5677
5778
5882
5983
6084
6185
6286
6387
6488
6592
6693
6794
6895
6996
7097
7198
7299

[1,2,3,4,5,6,7,8,9,11,12,13,14,15,16,21,22,23,24,
 25,26,27,31,32,33,34,35,36,37,42,43,44,45,46,47,
 48,52,53,54,55,56,57,58,62,63,64,65,66,67,68,72,
 73,74,75,76,77,78,82,83,84,85,86,87,88,92,93,94,
 95,96,97,98,99]