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A289573 as a simple table

na(n)
01
11
211
31011
410111
5100111
61001111
71111
811111
91011111
1010000111111
11100110111111
121001001111111
131100101111111
1411000011111111
151001111011111111
1610001110111111111
17100010000111111111
18111000101111111111
1910000001001111111111
20101110001011111111111

[1,1,11,1011,10111,100111,1001111,1111,11111,
 1011111,10000111111,100110111111,1001001111111,
 1100101111111,11000011111111,1001111011111111,
 10001110111111111,100010000111111111,
 111000101111111111,10000001001111111111,
 101110001011111111111]