# A009669 (b-file synthesized from sequence entry)
0 1
1 -2
2 12
3 -296
4 8208
5 -317088
6 22384832
7 -1922265216
8 200049877248
9 -28532108907008
10 4916900759571456
11 -987493645187344384
12 241526023834975735808
13 -69201642972421758361600