# A061140 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 5040
9 45360
10 226800
11 831600
12 9979200
13 103783680
14 2058376320
15 23870246400
16 265686220800
17 2477893017600
18 47031546481920
19 656384611034880
20 11972743148620800
21 165640695384729600
22 1969108505560627200