# A012829 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 -504
4 11904
5 -1023616
6 190103680
7 -27296677888
8 6616599617536
9 -2038987281108992
10 733961541487493120
11 -333541890591777587200
12 180073909555827471974400
13 -114101788265471646305353728