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A123698 as a simple table

na(n)
11
2111
31
4111
511011
6111
71
8111
911011
101100011
1111011
12111
131
14111
1511011
161100011
17110000011
181100011
1911011
20111
211

[1,111,1,111,11011,111,1,111,11011,1100011,11011,
 111,1,111,11011,1100011,110000011,1100011,11011,
 111,1]