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A083461 as a simple table

na(n)
10
23
37
49999
5242
6999999
79999999
899999999
9999999999
109999999999
1199999999999
12999999999999
139999999999999
1499999999999999
15999999999999999
169999999999999999
1799999999999999999
18999999999999999999

[0,3,7,9999,242,999999,9999999,99999999,999999999,
 9999999999,99999999999,999999999999,9999999999999,
 99999999999999,999999999999999,9999999999999999,
 99999999999999999,999999999999999999]