# A012454 (b-file synthesized from sequence entry)
0 1
1 0
2 12
3 0
4 17360
5 -241920
6 186158016
7 -11413642240
8 7726026430720
9 -1212323504480256
10 892608906281741312
11 -274005660019568705536
12 234514059257417538031616
13 -119571044071522301122641920