n | a(n) |
---|---|
1 | 1 |
2 | -1 |
3 | 1 |
4 | -2 |
5 | 3 |
6 | -4 |
7 | 5 |
8 | -8 |
9 | 12 |
10 | -16 |
11 | 22 |
12 | -32 |
13 | 45 |
14 | -62 |
15 | 87 |
16 | -124 |
17 | 175 |
18 | -244 |
19 | 343 |
20 | -484 |
21 | 679 |
22 | -952 |
23 | 1339 |
24 | -1884 |
25 | 2646 |
26 | -3716 |
27 | 5224 |
28 | -7342 |
29 | 10313 |
30 | -14490 |
31 | 20365 |
32 | -28618 |
33 | 40210 |
34 | -56502 |
35 | 79400 |
36 | -111570 |
37 | 156769 |
38 | -220290 |
39 | 309553 |
40 | -434974 |
41 | 611210 |
42 | -858864 |
43 | 1206862 |
[1,-1,1,-2,3,-4,5,-8,12,-16,22,-32,45,-62,87,-124, 175,-244,343,-484,679,-952,1339,-1884,2646,-3716, 5224,-7342,10313,-14490,20365,-28618,40210,-56502, 79400,-111570,156769,-220290,309553,-434974, 611210,-858864,1206862] |