# A012242 (b-file synthesized from sequence entry)
0 -1
1 6
2 -72
3 1456
4 -47104
5 2390784
6 -180612096
7 18625189888
8 -2431403622400
9 384624656646144
10 -72343735465672704
11 16067422146130345984
12 -4193787904779561730048
13 1276366494840535652499456