# A126448 (b-file synthesized from sequence entry)
0 1
1 6
2 120
3 4495
4 270725
5 24040016
6 2967205528
7 487444845680
8 103073959989495
9 27319423696620550
10 8881600973913295056
11 3478625214672347911080
12 1616770762998304775695925
13 880246034121663208464847200