# A140650 (b-file synthesized from sequence entry)
1 0
2 3
3 48
4 600
5 32256
6 1177344
7 268369920
8 36506664960
9 35184338534400
10 18577347909255168
11 73786976226118729728
12 153476910691030086451200
13 2475880078570197599844827136
14 20440865928680162788862343512064
15 1329227995784915854457062986570792960