# A338550 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 60
4 3360
5 705600
6 558835200
7 1678182105600
8 19198403288064000
9 840083731079104512000
10 141100463472046393835520000
11 91242050302344912388163665920000
12 227753296409896438988240405704212480000
13 2199573010737856838816729366169572868096000000
14 82356764599728553816070191604819734458909327360000000