# A373940 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 0
5 120
6 1800
7 16800
8 126000
9 834120
10 8731800
11 229191600
12 6352632000
13 143603580120
14 2736395461800
15 47283190718400
16 860150574738000
17 20236134851478120
18 614854122909391800
19 19930647062659477200
20 615406024970593164000
21 17883373100352330768120