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A288702 as a simple table

na(n)
01
11
2110
3111
411000
51111
61111000
711111
8111100000
91111111
1011110000000
11111111111
121111000000000
1311111111111
14111111110000000
15111100111111111
1611001111000000000
1711110011111111111
181100111100000000000
19111001111111111111
20111111100000000000000

[1,1,110,111,11000,1111,1111000,11111,111100000,
 1111111,11110000000,111111111,1111000000000,
 11111111111,111111110000000,111100111111111,
 11001111000000000,11110011111111111,
 1100111100000000000,111001111111111111,
 111111100000000000000]