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A288065 as a simple table

na(n)
01
11
2100
311
410000
510111
61100000
71001111
8101000000
91011111
1010110000000
111100111111
121011100000000
1311101111111
14101001000000000
15100100011111111
1610001110000000000
1711010010111111111
181000010100000000000
191111001111111111
20100111011000000000000

[1,1,100,11,10000,10111,1100000,1001111,101000000,
 1011111,10110000000,1100111111,1011100000000,
 11101111111,101001000000000,100100011111111,
 10001110000000000,11010010111111111,
 1000010100000000000,1111001111111111,
 100111011000000000000]