# A129663 (b-file synthesized from sequence entry)
0 1
1 1
2 8
3 26
4 1664
5 106496
6 370126848
7 7279690096640
8 4045738169062195200
9 597704977138451388530688000
10 111845949979901797334235660288000
11 1194765595895193218918930427630975811584000