# A068859 (b-file synthesized from sequence entry)
1 3
2 15
3 120
4 360
5 5040
6 201600
7 256032000
8 4064251968000
9 1024126980000259968000
10 29365589556381243259975904529351552000
11 82421263677202543043706796882184010324019881962069201381742720000