# A110442 (b-file synthesized from sequence entry)
2 6
3 120
4 55440
5 367567200
6 288807105787200
7 1970992304700453905270400
8 46015447651610234928592313897306120347488000
9 20945137389024582113645213620899991935836129981347124754955196200225728000