# A009521 (b-file synthesized from sequence entry)
0 1
1 -1
2 -7
3 55
4 2897
5 -5105
6 -7252983
7 -341550201
8 43255573537
9 11238852308639
10 963068748879257
11 -153386988236833449
12 -82902651997417876879
13 -17679532127297031010385
14 -779530123182446522616663