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A174200 as a simple table

na(n)
12
222
3222
43
533
6333
74
844
9444
105
1155
12555
136
1466
15666
167
1777
18777
197777
208
2188
22888
239
2499
25999
269999

[2,22,222,3,33,333,4,44,444,5,55,555,6,66,666,7,
 77,777,7777,8,88,888,9,99,999,9999]