# A220371 (b-file synthesized from sequence entry)
0 1
1 60
2 30240
3 17297280
4 70572902400
5 112634352230400
6 518118020259840000
7 1622745639453818880000
8 53122201253160214855680000
9 275173002491369912952422400000
10 3520013047869603926487387340800000
11 27244900990510734391012378017792000000