# A009226 (b-file synthesized from sequence entry)
0 1
1 1
2 0
3 -1
4 4
5 17
6 -24
7 -201
8 848
9 7041
10 -25792
11 -291025
12 1491392
13 18979729
14 -106879616
15 -1597285977
16 10504954112
17 176766161281
18 -1298259085312
19 -24470008076193
20 200164547589120
21 4166922390589073
22 -37466482286032896