# A056313 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 0
5 0
6 360
7 7560
8 95760
9 952560
10 8217720
11 64615680
12 476515080
13 3355679880
14 22837101840
15 151449674040
16 984573656640
17 6302070915840
18 39847411326600
19 249509384858160
20 1550188410555960
21 9570844671224760