n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 5 |
4 | -12 |
5 | 89 |
6 | -345 |
7 | 3093 |
8 | -17136 |
9 | 182097 |
10 | -1334025 |
11 | 16371365 |
12 | -150969324 |
13 | 2101489961 |
14 | -23556117585 |
15 | 367038504693 |
16 | -4870660226880 |
17 | 84100519126561 |
18 | -1293871061371761 |
19 | 24562906630580293 |
20 | -430689316852061740 |
[0,1,-1,5,-12,89,-345,3093,-17136,182097,-1334025, 16371365,-150969324,2101489961,-23556117585, 367038504693,-4870660226880,84100519126561, -1293871061371761,24562906630580293, -430689316852061740] |