# A012441 (b-file synthesized from sequence entry)
0 1
1 0
2 12
3 -120
4 11088
5 -559680
6 96647232
7 -11918734464
8 3443607499008
9 -785681136728064
10 344346566147423232
11 -125647543062169835520
12 77921368897600000020480
13 -41570816325816575416320000