n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | -2 |
4 | 2 |
5 | -6 |
6 | 3 |
7 | -16 |
8 | 17 |
9 | -34 |
10 | 47 |
11 | -78 |
12 | 153 |
13 | -178 |
14 | 373 |
15 | -530 |
16 | 954 |
17 | -1410 |
18 | 2280 |
19 | -3896 |
20 | 5908 |
21 | -9988 |
22 | 15170 |
23 | -25908 |
24 | 40659 |
25 | -65136 |
26 | 105967 |
27 | -169056 |
28 | 276483 |
29 | -435624 |
30 | 712052 |
31 | -1139814 |
32 | 1839535 |
33 | -2955466 |
34 | 4745201 |
35 | -7689672 |
36 | 12303439 |
37 | -19866340 |
38 | 31904000 |
[1,0,1,-2,2,-6,3,-16,17,-34,47,-78,153,-178,373, -530,954,-1410,2280,-3896,5908,-9988,15170,-25908, 40659,-65136,105967,-169056,276483,-435624,712052, -1139814,1839535,-2955466,4745201,-7689672, 12303439,-19866340,31904000] |