n | a(n) |
---|---|
-1 | 1 |
0 | 0 |
1 | 1 |
2 | -2 |
3 | 4 |
4 | -4 |
5 | 5 |
6 | -6 |
7 | 9 |
8 | -12 |
9 | 13 |
10 | -18 |
11 | 25 |
12 | -28 |
13 | 33 |
14 | -44 |
15 | 54 |
16 | -64 |
17 | 74 |
18 | -92 |
19 | 114 |
20 | -132 |
21 | 155 |
22 | -186 |
23 | 224 |
24 | -260 |
25 | 303 |
26 | -360 |
27 | 424 |
28 | -488 |
29 | 565 |
30 | -662 |
31 | 770 |
32 | -888 |
33 | 1018 |
34 | -1180 |
35 | 1366 |
36 | -1560 |
37 | 1780 |
38 | -2048 |
39 | 2345 |
40 | -2668 |
41 | 3034 |
42 | -3460 |
43 | 3946 |
44 | -4468 |
45 | 5052 |
46 | -5734 |
47 | 6502 |
48 | -7328 |
49 | 8255 |
50 | -9320 |
51 | 10512 |
52 | -11808 |
[1,0,1,-2,4,-4,5,-6,9,-12,13,-18,25,-28,33,-44,54, -64,74,-92,114,-132,155,-186,224,-260,303,-360, 424,-488,565,-662,770,-888,1018,-1180,1366,-1560, 1780,-2048,2345,-2668,3034,-3460,3946,-4468,5052, -5734,6502,-7328,8255,-9320,10512,-11808] |