# A163929 (b-file synthesized from sequence entry)
1 1
2 1
3 16
4 1296
5 20736
6 12960000
7 4320000
8 10372320000
9 165957120000
10 40327580160000
11 40327580160000
12 590436101122560000
13 590436101122560000
14 16863445484161436160000
15 2409063640594490880000
16 2409063640594490880000