# A012929 (b-file synthesized from sequence entry)
0 0
1 2
2 -1
3 12
4 -30
5 262
6 -1215
7 11480
8 -79212
9 843946
10 -7748685
11 93797220
12 -1071775914
13 14707276846
14 -200262193131
15 3096277157360
16 -48775756669080
17 843212284894418
18 -15047773283930841
19 288546782603059900