# A328055 (b-file synthesized from sequence entry)
0 0
1 1
2 5
3 32
4 270
5 2904
6 38400
7 605520
8 11113200
9 232888320
10 5488560000
11 143704108800
12 4138573824000
13 130020673305600
14 4425201196416000
15 162194862064435200
16 6369479157000960000
17 266808274486161408000
18 11874724379464826880000
19 559591797303082672128000