# A012808 (b-file synthesized from sequence entry)
0 1
1 0
2 28
3 -728
4 54416
5 -5676352
6 900432960
7 -193766436992
8 55349093955840
9 -20153308820338688
10 9138844606925237248
11 -5050190610067417167872
12 3343568694767924711428096
13 -2613638716122945595362951168