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A267356 as a simple table

na(n)
01
111
2111
31011
411111
5100011
61100111
711101011
8101111111
91110000011
1010110000111
11111110001011
121000110011111
1311001110100011
14111010111100111
151011111001101011
1611100011011111111
17101100111100000011
181111101001100000111
1910001111011100001011

[1,11,111,1011,11111,100011,1100111,11101011,
 101111111,1110000011,10110000111,111110001011,
 1000110011111,11001110100011,111010111100111,
 1011111001101011,11100011011111111,
 101100111100000011,1111101001100000111,
 10001111011100001011]