# A045998 (b-file synthesized from sequence entry)
0 1
1 11
2 1
3 1011
4 111001
5 110011
6 10001
7 10111011
8 1110111001
9 1110110011
10 1110010001
11 1100111011
12 100111001
13 101100110011
14 11100100010001
15 11001110111011
16 1001110111001
17 1011001110110011
18 111001001110010001