# A013415 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 -90
4 2520
5 -368550
6 36798300
7 -8485126650
8 1746971226000
9 -623950950372750
10 216093789514102500
11 -111905269600936061250
12 58297381976449590975000
13 -41488228251938936311593750