# A344057 (b-file synthesized from sequence entry)
0 1
1 2
2 24
3 360
4 8064
5 259200
6 11404800
7 660441600
8 48771072000
9 4477184409600
10 500391198720000
11 66920738734080000
12 10554356508917760000
13 1938789402181632000000
14 410402940653807861760000
15 99180710658003566592000000
16 27141314475238493257728000000