# A168928 (b-file synthesized from sequence entry)
0 1
1 11
2 110
3 1100
4 11000
5 110000
6 1100000
7 11000000
8 110000000
9 1100000000
10 11000000000
11 110000000000
12 1100000000000
13 11000000000000
14 110000000000000
15 1100000000000000
16 11000000000000000
17 110000000000000000