# A012507 (b-file synthesized from sequence entry)
0 1
1 1
2 -15
3 105
4 8897
5 -664815
6 -4523343
7 8138992953
8 -972054629887
9 -115219461350367
10 72803853486273265
11 -6666182957939643127
12 -7549270905441932464191
13 4123382958180269131627825