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A109241 as a simple table

na(n)
01
1110
211100
31111000
4111110000
511111100000
61111111000000
7111111110000000
811111111100000000
91111111111000000000
10111111111110000000000
1111111111111100000000000
121111111111111000000000000
13111111111111110000000000000
1411111111111111100000000000000

[1,110,11100,1111000,111110000,11111100000,
 1111111000000,111111110000000,11111111100000000,
 1111111111000000000,111111111110000000000,
 11111111111100000000000,1111111111111000000000000,
 111111111111110000000000000,
 11111111111111100000000000000]