# A123118 (b-file synthesized from sequence entry)
1 2
2 12
3 216
4 8640
5 933120
6 209018880
7 100329062400
8 130026464870400
9 349511137571635200
10 1968446726803449446400
11 22676506292775737622528000
12 522466704985552994823045120000
13 27820307107070725868337506549760000