# A231873 (b-file synthesized from sequence entry)
1 1
2 11
3 12
4 111
5 112
6 121
7 122
8 1111
9 1112
10 1121
11 1122
12 1211
13 1212
14 1221
15 1222
16 11111
17 11112
18 11121
19 11122
20 11211
21 11212
22 11221
23 11222
24 12111
25 12112
26 12121
27 12122
28 12211
29 12212
30 12221
31 12222