# A009538 (b-file synthesized from sequence entry)
0 1
1 2
2 -24
3 104
4 1792
5 -68608
6 1203840
7 5570816
8 -1636425728
9 86205304832
10 -2289265803264
11 -73881736609792
12 15846608494821376
13 -1309579649460404224
14 56807804221374332928
15 2613072244764189655040
16 -930940291170336707182592