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A266621 as a simple table

na(n)
01
110
21111
31010000
41101101
511010110110
61111011011
7111010001101100
81101010110001
91111010111111001010
101111000000011111
1111111010000111110100000
121101101000011011101
13111111010110110110101100110
141111011011011110001011
151111111010001101101100001011100

[1,10,1111,1010000,1101101,11010110110,1111011011,
 111010001101100,1101010110001,1111010111111001010,
 1111000000011111,11111010000111110100000,
 1101101000011011101,111111010110110110101100110,
 1111011011011110001011,
 1111111010001101101100001011100]