# A375414 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 0
4 24
5 120
6 1080
7 2520
8 40320
9 302400
10 4838400
11 33264000
12 498960000
13 5448643200
14 98075577600
15 1242290649600
16 21620216217600
17 337903056691200
18 6624678348288000
19 119786633597030400
20 2466692313845760000
21 50371208660957184000
22 1133144384491671552000