# A072240 (b-file synthesized from sequence entry)
1 6
2 1307674368000
3 25852016738884976640000
4 403291461126605635584000000
5 263130836933693530167218012160000000
6 33452526613163807108170062053440751665152000000000
7 10333147966386144929666651337523200000000