# A203528 (b-file synthesized from sequence entry)
1 5
2 70
3 1512
4 33150
5 842688
6 34594560
7 1705017600
8 68981673600
9 3038555520000
10 212396207063040
11 16628926183833600
12 985240084758930000
13 61949330611480166400
14 6155242080686899200000
15 445283762978503737288000