# A012716 (b-file synthesized from sequence entry)
0 0
1 1
2 2
3 4
4 0
5 -52
6 -440
7 -968
8 20160
9 407248
10 3393568
11 -7743232
12 -873283840
13 -15700243392
14 -92423547008
15 3404251259008
16 126748437358592
17 1959254285705472
18 -9945595116842496
19 -1499843474292945920