# A188456 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 44
4 1216
5 80640
6 12460032
7 4393091072
8 3479212916736
9 6113821454237696
10 23602899265140031488
11 198562423940692641316864
12 3615246879908004653107773440
13 141631725381846630255125115961344