# A074657 (b-file synthesized from sequence entry)
0 1
1 24
2 11328
3 11211192
4 15277006080
5 24934429725000
6 45695805580701504
7 90784545100668913368
8 191417861328822311040000
9 422458626725600682506889600
10 966695515158024385775097720000
11 2277925055026596846727033776223416
12 5499697195473757755136472944165075200