# A012898 (b-file synthesized from sequence entry)
0 1
1 0
2 -4
3 6
4 69
5 -330
6 -2604
7 29757
8 143689
9 -3993444
10 -5337254
11 737504515
12 -2332694727
13 -175190250378
14 1654468461772
15 50077708127475
16 -960691803929007
17 -15733047012443176
18 589399300515721526