# A191688 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 6
4 0
5 -60
6 720
7 546
8 -40320
9 357960
10 1693440
11 -59830914
12 414120960
13 6693648780
14 -171958026240
15 666035353626
16 40363372707840
17 -832144532031600
18 -1304413871800320
19 365125143426482166
20 -5976042240729415680