# A009614 (b-file synthesized from sequence entry)
0 0
1 1
2 -1
3 1
4 0
5 -14
6 150
7 -1154
8 6272
9 -10016
10 -305280
11 5160376
12 -49699056
13 248457496
14 1844013080
15 -69019386344
16 1062420810240
17 -9790634309504
18 3214679190912
19 2104758733135744
20 -52208434879690240
21 764746718991861376