# A013148 (b-file synthesized from sequence entry)
0 2
1 -20
2 872
3 -82848
4 13615232
5 -3427600128
6 1224824628224
7 -589372636243968
8 367372633732907008
9 -287938978919399424000
10 277156456747324043952128
11 -321405895510495023427223552