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A280837 as a simple table

na(n)
01
111
2110
31111
411010
5111111
61101010
711111111
8110101010
91111111111
1011010101110
11111111111011
121101010100100
1311111111111110
14110101010101011
151111111111111100
1611010101010101010
17111111111111111111
181101010111011101000
1911111111101110111000

[1,11,110,1111,11010,111111,1101010,11111111,
 110101010,1111111111,11010101110,111111111011,
 1101010100100,11111111111110,110101010101011,
 1111111111111100,11010101010101010,
 111111111111111111,1101010111011101000,
 11111111101110111000]