# A012873 (b-file synthesized from sequence entry)
1 0
2 1
3 -1
4 -3
5 12
6 43
7 -555
8 -49
9 37632
10 -154867
11 -3817845
12 45540649
13 409535148
14 -12690409929
15 -14813266559
16 3983011043675
17 -28691304331680
18 -1331245986549447
19 25689766775914647
20 419731311262402229