# A296817 (b-file synthesized from sequence entry)
0 1
1 -9
2 56
3 -328
4 1912
5 -11144
6 64952
7 -378568
8 2206456
9 -12860168
10 74954552
11 -436867144
12 2546248312
13 -14840622728
14 86497488056
15 -504144305608
16 2938368345592
17 -17126065767944
18 99818026262072
19 -581782091804488
20 3390874524564856
21 -19763465055584648