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A144246 as a simple table

na(n)
119
2109
3991
41009
510009
699991
79999991
81000000009
91000000000000000009
1010000000000000000000009
11999999999999999999999999999999991
12999999999999999999999999999999999999999999991

[19,109,991,1009,10009,99991,9999991,1000000009,
 1000000000000000009,10000000000000000000009,
 999999999999999999999999999999991,
 999999999999999999999999999999999999999999991]