# A003700 (b-file synthesized from sequence entry)
0 1
1 -1
2 -19
3 475
4 1753
5 -1109769
6 70784325
7 2711086547
8 -1376283649103
9 148592152807663
10 21812320857733789
11 -12754009647903010101
12 1675171082535404962441
13 847081835857552788679655