# A099023 (b-file synthesized from sequence entry)
0 1
1 -1
2 4
3 -46
4 1024
5 -36976
6 1965664
7 -144361456
8 13997185024
9 -1731678144256
10 266182076161024
11 -49763143319190016
12 11118629668610842624
13 -2925890822304510631936
14 895658946905031792553984