# A100043 (b-file synthesized from sequence entry)
1 2
2 120
3 40320
4 39916800
5 87178291200
6 355687428096000
7 2432902008176640000
8 25852016738884976640000
9 403291461126605635584000000
10 8841761993739701954543616000000
11 263130836933693530167218012160000000