# A009525 (b-file synthesized from sequence entry)
0 0
1 2
2 -12
3 222
4 -7672
5 416410
6 -32324292
7 3382216502
8 -457713511280
9 77686268202162
10 -16145162631579900
11 4030053480328871182
12 -1189173170586349109352
13 409307310296375069013578