# A009730 (b-file synthesized from sequence entry)
0 1
1 -1
2 41
3 -673
4 41425
5 -2148961
6 225227705
7 -23880701185
8 3905967813793
9 -689701934465089
10 163751563593866057
11 -42927084558629732833
12 14006383316589639761521
13 -5072190213708628462141345