# A125223 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 32
5 175
6 1091
7 7540
8 56744
9 459379
10 3965669
11 36266437
12 349564610
13 3536884843
14 37440399437
15 413499135061
16 4753206442286
17 56751068291533
18 702488064111341
19 9000518743165651
20 119183035725216482