# A037091 (b-file synthesized from sequence entry)
0 1
1 2
2 11
3 12
4 101
5 1001
6 1002
7 1011
8 1012
9 1101
10 10001
11 10002
12 10011
13 10012
14 10101
15 11001
16 11002
17 11011
18 11012
19 11101
20 20001
21 20002
22 20011
23 20012
24 20101
25 21001
26 21002
27 21011
28 100001
29 1000001
30 1000002
31 10000001
32 100000001
33 100000002