# A345132 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 10
4 46
5 252
6 1642
7 12316
8 104730
9 995122
10 10450414
11 120192924
12 1502537932
13 20285580880
14 294156077364
15 4559608340968
16 75236088623548
17 1316668510772124
18 24358939966126900
19 475008770990906488
20 9737844963832507656
21 209366721066736679536