# A072529 (b-file synthesized from sequence entry)
1 1
2 24
3 3240
4 1290240
5 1126125000
6 1822853652480
7 4914543582748800
8 20469829379869900800
9 124583146969045247683200
10 1061374990515840000000000000
11 12232437772393129356474535526400