# A253649 (b-file synthesized from sequence entry)
0 1
1 1
2 0
3 -10
4 -80
5 0
6 17600
7 418000
8 0
9 -496672000
10 -23576960000
11 0
12 91442700800000
13 7255463564800000
14 0
15 -69994087116448000000
16 -8354181454767104000000
17 0
18 169165728883243642880000000
19 28336045031124313753600000000
20 0
21 -1072156342430107319243161600000000