# A223068 (b-file synthesized from sequence entry)
0 1
1 16
2 3072
3 737280
4 1321205760
5 951268147200
6 2009078326886400
7 265928913086054400
8 44931349155019751424000
9 109991942731488351485952000
10 668751011807449177034588160000
11 2471703739640332158319837839360000