# A009478 (b-file synthesized from sequence entry)
0 0
1 2
2 -8
3 72
4 -1024
5 18720
6 -451200
7 13870976
8 -517341184
9 22907884032
10 -1190546278400
11 71557772290048
12 -4904509780131840
13 379465209995010048
14 -32882543112668741632
15 3167852772782079836160
16 -336982188500401608720384