# A075171 (b-file synthesized from sequence entry)
0 0
1 10
2 1010
3 1100
4 101100
5 101010
6 110010
7 110100
8 10110100
9 10110010
10 10101010
11 10101100
12 11001100
13 11001010
14 11010010
15 111000
16 10111000
17 1011010010
18 1011001010
19 1011001100
20 1010101100
21 1010101010
22 1010110010
23 1010110100