# A086501 (b-file synthesized from sequence entry)
1 0
2 0
3 18
4 456
5 13560
6 510480
7 25326000
8 1624815360
9 131671008000
10 13168037030400
11 1593348686899200
12 229442495919436800
13 38775787414703539200
14 7600054444782928128000
15 1710012252494048735232000