# A171790 (b-file synthesized from sequence entry)
0 1
1 1
2 -3
3 15
4 -91
5 612
6 -4389
7 32890
8 -254475
9 2017356
10 -16301164
11 133767543
12 -1111731933
13 9338434700
14 -79155435870
15 676196049060
16 -5815796869995
17 50318860986108
18 -437662920058980
19 3824609516638444
20 -33563127932394060