# A208655 (b-file synthesized from sequence entry)
1 1
2 1
3 6
4 36
5 2400
6 90000
7 55566000
8 13553164800
9 72267023646720
10 117595223746560000
11 5219033393851200000000
12 57636380373471744768000000
13 20810790197418148654769602560000
14 1578992018570629416640340512656998400