# A012128 (b-file synthesized from sequence entry)
0 1
1 -2
2 24
3 -776
4 49536
5 -5271936
6 842846848
7 -188826614016
8 56431158829056
9 -21687384462233600
10 10419278733341491200
11 -6118220781221123260416
12 4311116228906909580820480
13 -3590017073187013127497383936