# A014130 (b-file synthesized from sequence entry)
0 1
1 12
2 300
3 12600
4 793800
5 69854400
6 8172964800
7 1225944720000
8 229251662640000
9 52269379081920000
10 14269540489364160000
11 4594792037575259520000
12 1723047014090722320000000
13 744356310087192042240000000
14 366967660872985676824320000000