# A324403 (b-file synthesized from sequence entry)
0 1
1 2
2 400
3 121680000
4 281324160000000000
5 15539794609114833408000000000000
6 49933566483104048708063697937367040000000000000000
7 19323883089768863178599626514889213871887405416448000000000000000000000000