# A037575 (b-file synthesized from sequence entry)
1 2
2 21
3 212
4 2122
5 21221
6 212212
7 2122122
8 21221221
9 212212212
10 2122122122
11 21221221221
12 212212212212
13 2122122122122
14 21221221221221
15 212212212212212
16 2122122122122122