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A020449 as a simple table

na(n)
111
2101
310111
4101111
51011001
61100101
710010101
810011101
910100011
1010101101
1110110011
1210111001
1311000111
1411100101
1511110111
1611111101
17100100111
18100111001
19101001001
20101001011
21101100011
22101101111
23101111011
24101111111

[11,101,10111,101111,1011001,1100101,10010101,
 10011101,10100011,10101101,10110011,10111001,
 11000111,11100101,11110111,11111101,100100111,
 100111001,101001001,101001011,101100011,101101111,
 101111011,101111111]