# A071309 (b-file synthesized from sequence entry)
1 1
2 12
3 1320
4 1742400
5 25721308800
6 4145554781913600
7 7338585441586912128000
8 142998501741091915820267520000
9 30655092458961006120118267244605440000
10 72283553302207308288060341547889057722286080000