# A098695 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 96
4 18432
5 35389440
6 815372697600
7 263006617337856000
8 1357366631815981301760000
9 126095668058466123464363212800000
10 234278891648287676839670388023623680000000