# A374859 (b-file synthesized from sequence entry)
0 1
1 4
2 36
3 640
4 21600
5 1370880
6 163924992
7 37150064640
8 16065713664000
9 13343315521536000
10 21404225432753602560
11 66631099907380661452800
12 404128087449517604339712000
13 4791300434691082493755392000000
14 111343541043408070030243833839616000