n | a(n) |
---|---|
1 | 1 |
2 | -1 |
3 | -1 |
4 | 1 |
5 | 4 |
6 | 11 |
7 | 23 |
8 | 43 |
9 | 75 |
10 | 129 |
11 | 217 |
12 | 360 |
13 | 592 |
14 | 968 |
15 | 1577 |
16 | 2562 |
17 | 4158 |
18 | 6741 |
19 | 10921 |
20 | 17685 |
21 | 28630 |
22 | 46340 |
23 | 74996 |
24 | 121363 |
25 | 196387 |
26 | 317779 |
27 | 514196 |
28 | 832005 |
29 | 1346233 |
30 | 2178272 |
31 | 3524540 |
32 | 5702848 |
33 | 9227425 |
[1,-1,-1,1,4,11,23,43,75,129,217,360,592,968,1577, 2562,4158,6741,10921,17685,28630,46340,74996, 121363,196387,317779,514196,832005,1346233, 2178272,3524540,5702848,9227425] |