n | a(n) |
---|---|
1 | -1 |
2 | 1 |
3 | -1 |
4 | 2 |
5 | -2 |
6 | 4 |
7 | -4 |
8 | 7 |
9 | -7 |
10 | 12 |
11 | -12 |
12 | 22 |
13 | -21 |
14 | 39 |
15 | -39 |
16 | 68 |
17 | -70 |
18 | 119 |
19 | -127 |
20 | 210 |
21 | -229 |
22 | 369 |
23 | -413 |
24 | 649 |
25 | -742 |
26 | 1143 |
27 | -1334 |
28 | 2017 |
29 | -2393 |
30 | 3561 |
31 | -4289 |
32 | 6293 |
33 | -7680 |
34 | 11129 |
35 | -13739 |
36 | 19696 |
37 | -24559 |
38 | 34879 |
39 | -43871 |
40 | 61801 |
41 | -78324 |
42 | 109555 |
43 | -139764 |
44 | 194291 |
45 | -249295 |
46 | 344694 |
47 | -444496 |
48 | 611723 |
49 | -792285 |
[-1,1,-1,2,-2,4,-4,7,-7,12,-12,22,-21,39,-39,68, -70,119,-127,210,-229,369,-413,649,-742,1143, -1334,2017,-2393,3561,-4289,6293,-7680,11129, -13739,19696,-24559,34879,-43871,61801,-78324, 109555,-139764,194291,-249295,344694,-444496, 611723,-792285] |