# A181174 (b-file synthesized from sequence entry)
0 1
1 2
2 24
3 320
4 11264
5 688128
6 90177536
7 22817013760
8 11751030521856
9 11997870882291712
10 24607668363952390144
11 100719222642454151823360
12 825394103341888069030641664
13 13520781109074923362448234774528