# A134372 (b-file synthesized from sequence entry)
0 1
1 4
2 576
3 518400
4 1625702400
5 13168189440000
6 229442532802560000
7 7600054456551997440000
8 437763136697395052544000000
9 40990389067797283140009984000000
10 5919012181389927685417441689600000000