# A029572 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 0
4 0
5 24
6 144
7 1008
8 8064
9 72576
10 653184
11 7185024
12 86220288
13 1120863744
14 15692092416
15 237124952064
16 3793999233024
17 64497986961408
18 1160963765305344
19 22058311540801536
20 441004037348818944
21 9261084784325197824
22 203743865255154352128
23 4686108900868550098944