# A203533 (b-file synthesized from sequence entry)
1 1
2 10
3 840
4 464100
5 1481407200
6 32851686067200
7 5186361382800998400
8 4436556151786001058816000
9 19667253420867342693731328000000
10 605862171333980479840975997239296000000
11 132207384898194165523202154782408753283072000000