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A266589 as a simple table

na(n)
01
110
21110
31000001
4111000
511100000111
611100000
7111110000011111
81110000000
91111111000001111111
10111000000000
1111111111100000111111111
1211100000000000
13111111111110000011111111111
141110000000000000
151111111111111000001111111111111
16111000000000000000

[1,10,1110,1000001,111000,11100000111,11100000,
 111110000011111,1110000000,1111111000001111111,
 111000000000,11111111100000111111111,
 11100000000000,111111111110000011111111111,
 1110000000000000,1111111111111000001111111111111,
 111000000000000000]