n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | -1 |
4 | 0 |
5 | 3 |
6 | 9 |
7 | 16 |
8 | 7 |
9 | -87 |
10 | -472 |
11 | -1567 |
12 | -3375 |
13 | -216 |
14 | 45927 |
15 | 308107 |
16 | 1372744 |
17 | 4351599 |
18 | 5711849 |
19 | -49345432 |
20 | -547773585 |
21 | -3517370859 |
22 | -16914970464 |
23 | -56474505155 |
24 | -25470754271 |
25 | 1593389360016 |
26 | 17323737305039 |
27 | 125785962635543 |
28 | 706598399399184 |
[1,0,-1,-1,0,3,9,16,7,-87,-472,-1567,-3375,-216, 45927,308107,1372744,4351599,5711849,-49345432, -547773585,-3517370859,-16914970464,-56474505155, -25470754271,1593389360016,17323737305039, 125785962635543,706598399399184] |