# A079303 (b-file synthesized from sequence entry)
3 1
4 18
5 43920
6 4397760
7 122377651200
8 30993058252800
9 3921055557027840000
10 711860093387348628602880000
11 551343268152723132127641600000
12 567168796017902020698219516788736000000