n | a(n) |
---|---|
0 | 0 |
1 | -1 |
2 | 9 |
3 | -25 |
4 | 55 |
5 | -100 |
6 | 166 |
7 | -254 |
8 | 370 |
9 | -515 |
10 | 695 |
11 | -911 |
12 | 1169 |
13 | -1470 |
14 | 1820 |
15 | -2220 |
16 | 2676 |
17 | -3189 |
18 | 3765 |
19 | -4405 |
20 | 5115 |
21 | -5896 |
22 | 6754 |
23 | -7690 |
24 | 8710 |
25 | -9815 |
26 | 11011 |
27 | -12299 |
28 | 13685 |
29 | -15170 |
30 | 16760 |
31 | -18456 |
32 | 20264 |
33 | -22185 |
34 | 24225 |
35 | -26385 |
36 | 28671 |
37 | -31084 |
38 | 33630 |
39 | -36310 |
40 | 39130 |
[0,-1,9,-25,55,-100,166,-254,370,-515,695,-911, 1169,-1470,1820,-2220,2676,-3189,3765,-4405,5115, -5896,6754,-7690,8710,-9815,11011,-12299,13685, -15170,16760,-18456,20264,-22185,24225,-26385, 28671,-31084,33630,-36310,39130] |