# A097573 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 36
5 97344
6 2161134144
7 1111852196419369017600
8 462046200367699618749878135899012178386694400
9 117224333139662940653070504914857570420089294144957107957142671212206786775390019069002137600