n | a(n) |
---|---|
1 | 1 |
2 | -3 |
3 | 9 |
4 | -22 |
5 | 51 |
6 | -108 |
7 | 221 |
8 | -429 |
9 | 810 |
10 | -1476 |
11 | 2631 |
12 | -4572 |
13 | 7802 |
14 | -13056 |
15 | 21519 |
16 | -34918 |
17 | 55935 |
18 | -88452 |
19 | 138332 |
20 | -213990 |
21 | 327852 |
22 | -497592 |
23 | 748833 |
24 | -1117692 |
25 | 1655719 |
26 | -2434938 |
27 | 3556791 |
28 | -5161808 |
29 | 7445631 |
30 | -10677096 |
31 | 15226658 |
32 | -21599469 |
33 | 30485268 |
34 | -42817788 |
[1,-3,9,-22,51,-108,221,-429,810,-1476,2631,-4572, 7802,-13056,21519,-34918,55935,-88452,138332, -213990,327852,-497592,748833,-1117692,1655719, -2434938,3556791,-5161808,7445631,-10677096, 15226658,-21599469,30485268,-42817788] |