n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 1 |
6 | -1 |
7 | 2 |
8 | -2 |
9 | 4 |
10 | -6 |
11 | 10 |
12 | -16 |
13 | 27 |
14 | -44 |
15 | 75 |
16 | -127 |
17 | 218 |
18 | -375 |
19 | 650 |
20 | -1130 |
21 | 1974 |
22 | -3460 |
23 | 6086 |
24 | -10736 |
25 | 18993 |
26 | -33685 |
27 | 59882 |
28 | -106683 |
29 | 190446 |
30 | -340611 |
31 | 610243 |
32 | -1095102 |
33 | 1968200 |
34 | -3542468 |
35 | 6384518 |
36 | -11521308 |
37 | 20815942 |
38 | -37651528 |
39 | 68176596 |
40 | -123574852 |
41 | 224204708 |
42 | -407153894 |
[1,1,0,1,0,1,-1,2,-2,4,-6,10,-16,27,-44,75,-127, 218,-375,650,-1130,1974,-3460,6086,-10736,18993, -33685,59882,-106683,190446,-340611,610243, -1095102,1968200,-3542468,6384518,-11521308, 20815942,-37651528,68176596,-123574852,224204708, -407153894] |