# A011787 (b-file synthesized from sequence entry)
1 1
2 48
3 43008
4 660602880
5 167761422581760
6 692647993190048071680
7 46119672943810238272430407680
8 49327181820263339694887026906732953600
9 845779385319367513935228608424336170436211507200