# A012538 (b-file synthesized from sequence entry)
0 1
1 0
2 -12
3 -240
4 -5040
5 -145920
6 -9256896
7 -1349048064
8 -289962366720
9 -78050616729600
10 -25779840881748992
11 -10375373322500206592
12 -5028804353588061089792
13 -2895752923791276634275840