# A177635 (b-file synthesized from sequence entry)
0 1
1 1
2 20
3 1680
4 369600
5 168168000
6 137225088000
7 182499151015439
8 369333660414653745
9 1080107104118231632500
10 4384231121059173932562000
11 23913914175434871142808715000
12 170693577054027116430454774306800
13 1559452501977701854639515593122328400