# A231872 (b-file synthesized from sequence entry)
1 1
2 11
3 111
4 121
5 1111
6 1121
7 1211
8 1221
9 11111
10 11121
11 11211
12 11221
13 12111
14 12121
15 12211
16 12221
17 12321
18 111111
19 111121
20 111211
21 111221
22 112111
23 112121
24 112211
25 112221
26 112321
27 121111
28 121121
29 121211
30 121221
31 122111
32 122121
33 122211
34 122221
35 122321
36 123211
37 123221
38 123321