# A337677 (b-file synthesized from sequence entry)
0 1
1 -1
2 15
3 -1150
4 277760
5 -164021776
6 200693093392
7 -455136213439776
8 1760342776470958080
9 -10907982472777142353920
10 103006437933467240856354816
11 -1424284967682216438413265543168
12 27890228890526992620507064048877568
13 -752281114397558490715695708227012591616