# A097303 (b-file synthesized from sequence entry)
0 1
1 12
2 144
3 8640
4 103680
5 1741824
6 104509440
7 179159040
8 2149908480
9 1418939596800
10 23838185226240
11 338068808663040
12 20284128519782400
13 18723810941337600
14 32097961613721600
15 229179445921972224000