# A012127 (b-file synthesized from sequence entry)
0 1
1 0
2 -4
3 80
4 -2224
5 88960
6 -4942144
7 366928640
8 -35219691264
9 4251941253120
10 -631113275843584
11 113005305852006400
12 -24021321751206703104
13 5979261710118927892480