# A012010 (b-file synthesized from sequence entry)
0 1
1 -4
2 76
3 -3592
4 317968
5 -45286528
6 9459412288
7 -2724254181760
8 1034595588065536
9 -500961002883890176
10 301230818225601928192
11 -220218226893098691684352
12 192355329482117756948647936