# A162447 (b-file synthesized from sequence entry)
2 12
3 720
4 181440
5 7257600
6 399168000
7 1307674368000
8 73229764608000
9 731699852083200
10 229909239772692480000
11 84300054583320576000000
12 51186993142992253747200000
13 21777738900836704321536000000