# A068112 (b-file synthesized from sequence entry)
0 1
1 4
2 768
3 1555200
4 20808990720
5 9029615616000000
6 1415988202438656000000
7 536259842454308939366400000
8 7188611938994779905746534400000000
9 503281313253202450261043834781696000000