# A012455 (b-file synthesized from sequence entry)
0 1
1 0
2 -12
3 0
4 -560
5 241920
6 -8750016
7 1727165440
8 -426305201920
9 91939471712256
10 -31563179893517312
11 13087008599986241536
12 -6237304648085400498176
13 3651782585501269235793920