n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 0 |
3 | -1 |
4 | 0 |
5 | -1 |
6 | -1 |
7 | -1 |
8 | -2 |
9 | -2 |
10 | -4 |
11 | -4 |
12 | -7 |
13 | -9 |
14 | -13 |
15 | -19 |
16 | -25 |
17 | -38 |
18 | -51 |
19 | -75 |
20 | -104 |
21 | -149 |
22 | -211 |
23 | -298 |
24 | -426 |
25 | -600 |
26 | -857 |
27 | -1211 |
28 | -1724 |
29 | -2444 |
30 | -3471 |
31 | -4930 |
32 | -6995 |
33 | -9940 |
34 | -14104 |
35 | -20038 |
36 | -28444 |
37 | -40397 |
38 | -57362 |
39 | -81453 |
40 | -115675 |
41 | -164250 |
42 | -233262 |
43 | -331227 |
[1,-1,0,-1,0,-1,-1,-1,-2,-2,-4,-4,-7,-9,-13,-19, -25,-38,-51,-75,-104,-149,-211,-298,-426,-600, -857,-1211,-1724,-2444,-3471,-4930,-6995,-9940, -14104,-20038,-28444,-40397,-57362,-81453,-115675, -164250,-233262,-331227] |