# A327882 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 72
4 2880
5 201600
6 21772800
7 3353011200
8 697426329600
9 188305108992000
10 64023737057280000
11 26761922089943040000
12 13488008733331292160000
13 8065829222532112711680000
14 5646080455772478898176000000
15 4573325169175707907522560000000
16 4244045756995056938180935680000000