# A012696 (b-file synthesized from sequence entry)
0 2
1 -16
2 32
3 18944
4 -1904128
5 41160704
6 41418432512
7 -13226611572736
8 1026478445821952
9 1419327244545818624
10 -990157599155377143808
11 185269154824838954614784
12 314145305969818487050207232