# A012050 (b-file synthesized from sequence entry)
0 1
1 -1
2 17
3 -673
4 48481
5 -5556929
6 930399601
7 -214412110305
8 65104843008449
9 -25194079035190657
10 12104203127776694225
11 -7069126951831617433377
12 4932323527151866597114145
13 -4052159085639349626953573441