# A009534 (b-file synthesized from sequence entry)
0 1
1 -4
2 -4
3 104
4 1360
5 -1024
6 -494272
7 -13790848
8 -68726528
9 15167771648
10 993154165760
11 28626523621376
12 -1093475947065344
13 -226570569999351808
14 -17689046976830488576
15 -517441925077565734912
16 83539213519199718670336