# A143248 (b-file synthesized from sequence entry)
1 0
2 12
3 144
4 2880
5 86400
6 3628800
7 203212800
8 14631321600
9 1316818944000
10 144850083840000
11 19120211066880000
12 2982752926433280000
13 542861032610856960000
14 114000816848279961600000