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A138824 as a simple table

na(n)
11
210
3100
41000
510000
6100000
71111111
811111110
9111111100
101111111000
1111111110000
12111111100000

[1,10,100,1000,10000,100000,1111111,11111110,
 111111100,1111111000,11111110000,111111100000]