# A147007 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 2
10 3
11 6
12 9
13 14
14 23
15 57
16 131
17 385
18 909
19 2527
20 6618
21 23479