# A035520 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 1
5 30
6 705
7 15960
8 370125
9 8998290
10 231416325
11 6314962500
12 182894567625
13 5615811951750
14 182497749258825
15 6264206330382000
16 226636350724909125
17 8624703350821808250
18 344535241891693978125
19 14419858385821910521500