# A377401 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 72
4 576
5 14400
6 28800
7 470400
8 22579200
9 1828915200
10 18289152000
11 2212987392000
12 26555848704000
13 4487938430976000
14 62831138033664000
15 942467070504960000
16 30158946256158720000
17 8715935468029870080000
18 52295612808179220480000
19 18878716223752698593280000