# A090770 (b-file synthesized from sequence entry)
0 2
1 48
2 23040
3 185794560
4 24257337753600
5 50821645356918374400
6 1704875112338069448032256000
7 915241991059360703024740763172864000
8 7861748876453505095791592854589753555681280000
9 1080506416218846625176535970968094253434513802154475520000
10 2376056471052200653607636735377527394627947719754523173734842368000000