# A343446 (b-file synthesized from sequence entry)
0 -1
1 1
2 4
3 40
4 648
5 14560
6 418880
7 14696640
8 608608000
9 29056867840
10 1571364748800
11 94937979136000
12 6337884013260800
13 463301182536192000
14 36806315255277568000
15 3157533815406530560000
16 290912372128665391104000
17 28648563542097847828480000