# A012933 (b-file synthesized from sequence entry)
0 1
1 0
2 4
3 -6
4 51
5 -180
6 1614
7 -9282
8 92981
9 -747432
10 8490344
11 -87525790
12 1128907527
13 -14143194780
14 206202445778
15 -3029299520730
16 49575702703017
17 -833078428220240
18 15183028632600076
19 -286645711942606518