# A082426 (b-file synthesized from sequence entry)
1 1
2 3
3 10
4 49
5 301
6 2161
7 17641
8 161281
9 1632961
10 18144001
11 219542401
12 2874009601
13 40475635201
14 610248038401
15 9807557760001
16 167382319104001
17 3023343138816001
18 57621363351552001
19 1155628453883904001
20 24329020081766400001