# A012763 (b-file synthesized from sequence entry)
0 1
1 0
2 -1
3 3
4 -18
5 60
6 -60
7 -1890
8 31472
9 -319032
10 2369280
11 -6374280
12 -209401368
13 5594400240
14 -90523285944
15 1016295254520
16 -3922383447232
17 -184920315173888
18 6878045401558272
19 -151394798389814208