# A258586 (b-file synthesized from sequence entry)
0 1
1 2
2 936
3 1825221320
4 70351928759681296000
5 160978956785364112335731878007698260
6 51488321677815455036453939239317069333712945710369620220
7 4648889159675386017282064494039528050991187044317172798976485350954735075040045120