# A012466 (b-file synthesized from sequence entry)
0 1
1 0
2 12
3 -480
4 37968
5 -4773120
6 878319552
7 -222512349696
8 74262725323008
9 -31578556041732096
10 16666719859336276992
11 -10690478515516973015040
12 8190555666463900906475520
13 -7387658525325188387856384000