# A366751 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 0
4 24
5 60
6 120
7 210
8 20496
9 181944
10 1059120
11 4990590
12 180292200
13 3191349876
14 36598884504
15 327837512730
16 7732754793120
17 194896185648240
18 3574721299186656
19 51311061420097014
20 1105883184455171640
21 32127696556638165420
22 812811279492629700360