# A296982 (b-file synthesized from sequence entry)
0 0
1 1
2 -1
3 4
4 -18
5 118
6 -930
7 8888
8 -98504
9 1248784
10 -17790480
11 281590032
12 -4901447232
13 93064850448
14 -1914144990576
15 42396742460928
16 -1006101059149440
17 25466710774651776
18 -684902462140798848
19 19503187752732408576
20 -586221766070655432960