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A135653
as a simple table
n
a(n)
1
1
2
10
3
100
4
1000
5
10000
6
11111
7
111110
8
1111100
9
11111000
10
111110000
[1,10,100,1000,10000,11111,111110,1111100, 11111000,111110000]