# A354176 (b-file synthesized from sequence entry)
1 1
2 0
3 -2
4 8
5 -24
6 -16
7 -720
8 12032
9 0
10 -7936
11 -3628800
12 -58190848
13 -479001600
14 -22368256
15 87178291200
16 6174957043712
17 -20922789888000
18 47215125069824
19 -6402373705728000
20 -164824694455533568
21 2432902008176640000
22 -4951498053124096
23 -1124000727777607680000