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A138147 as a simple table

n a(n)
1 10
2 1100
3 111000
4 11110000
5 1111100000
6 111111000000
7 11111110000000
8 1111111100000000
9 111111111000000000
10 11111111110000000000
11 1111111111100000000000
12 111111111111000000000000
13 11111111111110000000000000
14 1111111111111100000000000000

[10,1100,111000,11110000,1111100000,111111000000,
 11111110000000,1111111100000000,
 111111111000000000,11111111110000000000,
 1111111111100000000000,111111111111000000000000,
 11111111111110000000000000,
 1111111111111100000000000000]

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Last modified May 22 14:32 EDT 2019. Contains 323480 sequences. (Running on oeis4.)