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A289405 as a simple table

na(n)
01
110
2110
31100
411100
5111000
61111000
711110000
8111110000
91111100000
1011111100000
11111111000000
121111111000000
1311111110000000
14111111110000000
151111111100000000
1611111111100000000
17111111111000000000
181111111111000000000
1911111111110000000000

[1,10,110,1100,11100,111000,1111000,11110000,
 111110000,1111100000,11111100000,111111000000,
 1111111000000,11111110000000,111111110000000,
 1111111100000000,11111111100000000,
 111111111000000000,1111111111000000000,
 11111111110000000000]