n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | -2 |
4 | 4 |
5 | -6 |
6 | 12 |
7 | -26 |
8 | 52 |
9 | -102 |
10 | 204 |
11 | -410 |
12 | 820 |
13 | -1638 |
14 | 3276 |
15 | -6554 |
16 | 13108 |
17 | -26214 |
18 | 52428 |
19 | -104858 |
20 | 209716 |
21 | -419430 |
22 | 838860 |
23 | -1677722 |
24 | 3355444 |
25 | -6710886 |
26 | 13421772 |
27 | -26843546 |
28 | 53687092 |
29 | -107374182 |
30 | 214748364 |
31 | -429496730 |
32 | 858993460 |
33 | -1717986918 |
34 | 3435973836 |
35 | -6871947674 |
[1,0,0,-2,4,-6,12,-26,52,-102,204,-410,820,-1638, 3276,-6554,13108,-26214,52428,-104858,209716, -419430,838860,-1677722,3355444,-6710886,13421772, -26843546,53687092,-107374182,214748364, -429496730,858993460,-1717986918,3435973836, -6871947674] |