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A104013 as a simple table

na(n)
10
20
310
40
51100
610
7100
80
9111000
101100
111011101000
1210
13100111011000
14100
151000
160
1711110000
18111000
19110101111001010000
201100
21110000
221011101000
2310110010000
2410
2510100011110101110000
26100111011000
27100101111011010000

[0,0,10,0,1100,10,100,0,111000,1100,1011101000,10,
 100111011000,100,1000,0,11110000,111000,
 110101111001010000,1100,110000,1011101000,
 10110010000,10,10100011110101110000,100111011000,
 100101111011010000]