# A012683 (b-file synthesized from sequence entry)
0 2
1 -16
2 200
3 1024
4 -523232
5 36263680
6 7024697472
7 -3839533326336
8 933770326393344
9 5856130402316288
10 -153024990104004376576
11 83925295292036381278208
12 4161808298471932199182336