# A367314 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 12
5 420
6 10920
7 13791960
8 31781240978760
9 2475081972959523523910954640
10 3442004402022863055515137969749021701676249608093520
11 45446117889526225044218072480163823127876682090382722344419488836545177458721523373548206735891390800