# A104134 (b-file synthesized from sequence entry)
0 1
1 -2
2 40
3 -3680
4 880000
5 -435776000
6 386949376000
7 -560034421760000
8 1233482823823360000
9 -3926150877331865600000
10 17346066637844488192000000
11 -102987227337891283042304000000
12 800183462504065339211776000000000