# A052263 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 0
5 1
6 240
7 62720
8 23224320
9 13440516096
10 12754259804160
11 20377681883299840
12 55671587500342640640
13 262483693581093123915776
14 2147534811240814766425374720
15 30585643102219392981931508367360