# A009510 (b-file synthesized from sequence entry)
0 1
1 -2
2 12
3 -464
4 336
5 -838752
6 -11036608
7 -5128035072
8 -109537337088
9 -68456854604288
10 1239349299477504
11 -1118496851419058176
12 496293938871527395328
13 82254029902844029313024
14 110360677045459831814963200
15 38125337574469492416381255680