# A156337 (b-file synthesized from sequence entry)
0 1
1 4
2 16
3 384
4 17856
5 13492992
6 11507268608
7 160888878129152
8 2306486569154275328
9 537309590223329223155712
10 126767209261235580163634135040
11 483356141899716284828508078471905280